Question 1
Multiple Choice
A nursing instructor is describing the various work factors that can lead to errors in dosage calculations to a group of nursing students. The instructor determines that the teaching was successful when the students identify which of the following as a factor? Select all that apply.
Correct!
Incorrect
The correct answer is: A,B,C,E
Rationale
Poor lighting, heavy workload, noise, and interruptions are all factors that can lead to errors in dosage calculations as they distract or impair a nurse's ability to concentrate effectively.
D: Temperature does not significantly influence dosage calculations; it is more related to environmental comfort rather than cognitive performance.
Correct Answer: A,B,C,E
Rationale: Poor lighting, heavy workload, noise, and interruptions are all factors that can lead to errors in dosage calculations as they distract or impair a nurse's ability to concentrate effectively.
D: Temperature does not significantly influence dosage calculations; it is more related to environmental comfort rather than cognitive performance.
Question 2
Multiple Choice
A nurse is checking the label of a drug. Which of the following would the nurse identify as an important item needed to administer a drug? Select all that apply.
Correct!
Incorrect
The correct answer is: C,D,E
Rationale
C, D, E.
The nurse needs to identify the dosage form, drug name, and dosage strength on the label to ensure safe and effective drug administration. These elements provide crucial information about how the medication should be given and the appropriate amount required for the patient.
A: Monitoring parameters. While important in patient care, monitoring parameters do not appear on the drug label and do not directly inform the administration of the medication itself.
B: Side effects. Although knowing side effects is essential for patient safety, they are not required on the drug label for administering the medication, hence not necessary at this stage.
Correct Answer: C,D,E
Rationale: C, D, E.
The nurse needs to identify the dosage form, drug name, and dosage strength on the label to ensure safe and effective drug administration. These elements provide crucial information about how the medication should be given and the appropriate amount required for the patient.
A: Monitoring parameters. While important in patient care, monitoring parameters do not appear on the drug label and do not directly inform the administration of the medication itself.
B: Side effects. Although knowing side effects is essential for patient safety, they are not required on the drug label for administering the medication, hence not necessary at this stage.
Question 3
Multiple Choice
A nurse is reviewing the package label of a drug. Which name would the nurse find on the drug label? Select all that apply.
Correct!
Incorrect
The correct answer is: A,E
Rationale
A trade name and a generic name are typically found on a drug label. The trade name is the brand under which the drug is marketed, while the generic name denotes the chemical substance’s official name. Both are essential for identifying and prescribing medications safely.
B: Scientific name This term usually refers to a drug's chemical structure rather than its marketed form and is not typically displayed on consumer packaging.
C: Pharmacologic name This designation describes the drug's class or action rather than appearing directly on labels; it does not serve as a common identifier for patients.
D: Nonproprietary name While closely related to the generic name, this term is less commonly used in practice and does not typically appear on consumer-facing drug labels.
Correct Answer: A,E
Rationale: A trade name and a generic name are typically found on a drug label. The trade name is the brand under which the drug is marketed, while the generic name denotes the chemical substance’s official name. Both are essential for identifying and prescribing medications safely.
B: Scientific name This term usually refers to a drug's chemical structure rather than its marketed form and is not typically displayed on consumer packaging.
C: Pharmacologic name This designation describes the drug's class or action rather than appearing directly on labels; it does not serve as a common identifier for patients.
D: Nonproprietary name While closely related to the generic name, this term is less commonly used in practice and does not typically appear on consumer-facing drug labels.
Question 4
Multiple Choice
A nurse is reading a drug label. Which of the following might help the nurse distinguish between the trade and generic names on the drug label? Select all that apply.
Correct!
Incorrect
The correct answer is: B,C
Rationale
The trade name is usually capitalized and followed by a registration symbol. This distinction helps nurses quickly identify the trade name on drug labels, ensuring accurate medication administration and patient safety.
A: The trade name is written in smaller print. Typically, trade names are prominent and larger to enhance visibility, making this option misleading in identifying the name correctly.
D: The trade name is often in parentheses. Trade names are not typically enclosed in parentheses; this format is more commonly associated with alternative uses or clarifications rather than names.
E: The trade name is found under the generic name. Trade names generally appear above or alongside the generic name, allowing for immediate recognition and differentiation, contradicting this statement.
Correct Answer: B,C
Rationale: The trade name is usually capitalized and followed by a registration symbol. This distinction helps nurses quickly identify the trade name on drug labels, ensuring accurate medication administration and patient safety.
A: The trade name is written in smaller print. Typically, trade names are prominent and larger to enhance visibility, making this option misleading in identifying the name correctly.
D: The trade name is often in parentheses. Trade names are not typically enclosed in parentheses; this format is more commonly associated with alternative uses or clarifications rather than names.
E: The trade name is found under the generic name. Trade names generally appear above or alongside the generic name, allowing for immediate recognition and differentiation, contradicting this statement.
Question 5
Regular
A client has been taking warfarin (Coumadin) 5 \mathrm{mg} daily. After a check of the client's INR, the physician wants to increase the client's dose to 7.5 \mathrm{mg} on Wednesdays and continue 5 \mathrm{mg} all the other days of the week. The client has warfarin 5 -mg tablets on hand. The nurse would instruct the client to take tablets on Wednesdays.
Correct!
Incorrect
The correct answer is: B
Rationale
To achieve a 7.5 mg dose on Wednesdays, the client should take 1.5 tablets of the 5 mg warfarin. This ensures the correct dosage is administered without requiring additional tablets.
A: 1 tablet Taking only 1 tablet would only provide a total of 5 mg, failing to meet the increased dosage requirement set by the physician.
C: 2 tablets Two tablets would deliver a total of 10 mg, exceeding the prescribed dose and potentially leading to adverse effects from excessive anticoagulation.
D: 2.5 tablets Administering 2.5 tablets would result in a 12.5 mg dose, which is significantly above the target dosage and poses serious health risks to the client.
Correct Answer: B
Rationale: To achieve a 7.5 mg dose on Wednesdays, the client should take 1.5 tablets of the 5 mg warfarin. This ensures the correct dosage is administered without requiring additional tablets.
A: 1 tablet Taking only 1 tablet would only provide a total of 5 mg, failing to meet the increased dosage requirement set by the physician.
C: 2 tablets Two tablets would deliver a total of 10 mg, exceeding the prescribed dose and potentially leading to adverse effects from excessive anticoagulation.
D: 2.5 tablets Administering 2.5 tablets would result in a 12.5 mg dose, which is significantly above the target dosage and poses serious health risks to the client.
Question 6
Regular
A physician writes an order for a client to receive levothyroxine (Synthroid) 0.2 mg, but 100-mcg tablets are supplied. The nurse would administer tablets to the client.
Correct!
Incorrect
The correct answer is: B
Rationale
To achieve a dosage of 0.2 mg, the nurse would administer two 100-mcg tablets, as each tablet contains 0.1 mg. This ensures the client receives the proper therapeutic amount of levothyroxine.
A: One tablet Administering one tablet only provides 0.1 mg, which is insufficient for the prescribed 0.2 mg dose.
C: Three tablets This option exceeds the required dosage, delivering 0.3 mg, which may lead to adverse effects.
D: Four tablets Administering four tablets results in a total of 0.4 mg, significantly surpassing the ordered dose and risking toxicity.
Correct Answer: B
Rationale: To achieve a dosage of 0.2 mg, the nurse would administer two 100-mcg tablets, as each tablet contains 0.1 mg. This ensures the client receives the proper therapeutic amount of levothyroxine.
A: One tablet Administering one tablet only provides 0.1 mg, which is insufficient for the prescribed 0.2 mg dose.
C: Three tablets This option exceeds the required dosage, delivering 0.3 mg, which may lead to adverse effects.
D: Four tablets Administering four tablets results in a total of 0.4 mg, significantly surpassing the ordered dose and risking toxicity.
Question 7
Multiple Choice
A group of nursing students are reviewing the various systems of measurement. The students demonstrate understanding of the information when they identify which of the following as a metric system unit? Select all that apply.
Correct!
Incorrect
The correct answer is: B,C
Rationale
Milligram, centimeter. These units belong to the metric system, which is based on powers of ten. They are commonly used in scientific and medical contexts, emphasizing precision in measurements.
A: Inch. This unit measures length in the imperial system, not the metric system, which utilizes millimeters, centimeters, and meters for length measurement.
D: Ounce. As a unit of weight in the imperial system, the ounce does not align with the metric system, which offers grams and kilograms instead.
E: Pound. Similar to the ounce, the pound is part of the imperial measurement system, contrasting with the metric system's focus on grams and kilograms for weight.
Correct Answer: B,C
Rationale: Milligram, centimeter. These units belong to the metric system, which is based on powers of ten. They are commonly used in scientific and medical contexts, emphasizing precision in measurements.
A: Inch. This unit measures length in the imperial system, not the metric system, which utilizes millimeters, centimeters, and meters for length measurement.
D: Ounce. As a unit of weight in the imperial system, the ounce does not align with the metric system, which offers grams and kilograms instead.
E: Pound. Similar to the ounce, the pound is part of the imperial measurement system, contrasting with the metric system's focus on grams and kilograms for weight.
Question 8
Multiple Choice
Which of the following drug doses is written correctly? Select all that apply.
Correct!
Incorrect
The correct answer is: A,C
Rationale
A: Synthroid 0.175 \mathrm{mg}
This dose is correctly expressed, as it adheres to standard medical notation by using a decimal to denote a fraction of a milligram while providing clarity in dosage.
B: Synthroid 175 \mathrm{mg}
This option suggests an excessively high dosage of Synthroid, which is inappropriate and potentially dangerous, as typical doses are measured in micrograms rather than milligrams.
C: Synthroid 175 \mathrm{mcg}
This dosage is presented accurately, following medical guidelines for Synthroid, which is typically prescribed in micrograms to ensure safe and effective treatment for patients.
D: Synthroid 175.0 \mathrm{mcg}
While this choice uses the correct unit, the inclusion of a decimal point is unnecessary and does not enhance clarity for this specific dosage format in standard practice.
E: Synthroid 1750 \mathrm{mg}
This dosage is alarmingly high and not consistent with common prescription practices for Synthroid, which should be given in micrograms, not in milligrams, for safety.
Correct Answer: A,C
Rationale: A: Synthroid 0.175 \mathrm{mg}
This dose is correctly expressed, as it adheres to standard medical notation by using a decimal to denote a fraction of a milligram while providing clarity in dosage.
B: Synthroid 175 \mathrm{mg}
This option suggests an excessively high dosage of Synthroid, which is inappropriate and potentially dangerous, as typical doses are measured in micrograms rather than milligrams.
C: Synthroid 175 \mathrm{mcg}
This dosage is presented accurately, following medical guidelines for Synthroid, which is typically prescribed in micrograms to ensure safe and effective treatment for patients.
D: Synthroid 175.0 \mathrm{mcg}
While this choice uses the correct unit, the inclusion of a decimal point is unnecessary and does not enhance clarity for this specific dosage format in standard practice.
E: Synthroid 1750 \mathrm{mg}
This dosage is alarmingly high and not consistent with common prescription practices for Synthroid, which should be given in micrograms, not in milligrams, for safety.
Question 9
Multiple Choice
A group of nursing students are reviewing information about drugs and how they are supplied for parenteral administration. The students demonstrate understanding of the information when they identify which forms as available for parenteral administration? Select all that apply.
Correct!
Incorrect
The correct answer is: A,C,D,E
Rationale
Disposable syringes, ampules containing liquid form of the drug, reusable vials containing liquid form, and vials containing drug powder are all forms available for parenteral administration.
The correct answer encompasses various delivery methods essential for effective drug administration, ensuring that students recognize both single-use options like syringes and multiple-use containers such as vials and ampules, which are crucial in clinical settings.
B: Reusable cartridges Lack versatility compared to other forms, as they are not typically used for all types of parenteral drugs, limiting their applicability in diverse medical scenarios.
Correct Answer: A,C,D,E
Rationale: Disposable syringes, ampules containing liquid form of the drug, reusable vials containing liquid form, and vials containing drug powder are all forms available for parenteral administration.
The correct answer encompasses various delivery methods essential for effective drug administration, ensuring that students recognize both single-use options like syringes and multiple-use containers such as vials and ampules, which are crucial in clinical settings.
B: Reusable cartridges Lack versatility compared to other forms, as they are not typically used for all types of parenteral drugs, limiting their applicability in diverse medical scenarios.
Question 10
Regular
A client weighs 56 kg. The client weighs pounds.
Correct!
Incorrect
The correct answer is: B
Rationale
The client weighs 123.2 lb. Converting kilograms to pounds involves multiplying by 2.20462. Therefore, 56 kg multiplied by this factor equals approximately 123.2 lb, confirming this option's accuracy.
A: 112.0 lb This weight suggests an incorrect conversion, as it underestimates the client's mass significantly, reflecting a misunderstanding of the kilogram-to-pound ratio.
C: 134.4 lb This value overestimates the client's weight, failing to adhere to the precise conversion factor, leading to an inflated result that does not align with the actual measurement.
D: 145.6 lb This option represents a gross overestimation of the client's weight, indicating a serious miscalculation in the conversion from kilograms to pounds, deviating from the correct result.
Correct Answer: B
Rationale: The client weighs 123.2 lb. Converting kilograms to pounds involves multiplying by 2.20462. Therefore, 56 kg multiplied by this factor equals approximately 123.2 lb, confirming this option's accuracy.
A: 112.0 lb This weight suggests an incorrect conversion, as it underestimates the client's mass significantly, reflecting a misunderstanding of the kilogram-to-pound ratio.
C: 134.4 lb This value overestimates the client's weight, failing to adhere to the precise conversion factor, leading to an inflated result that does not align with the actual measurement.
D: 145.6 lb This option represents a gross overestimation of the client's weight, indicating a serious miscalculation in the conversion from kilograms to pounds, deviating from the correct result.
Question 11
Regular
The nurse is checking the dosage of a drug ordered in mg/ kg. A client weighs 275lb. The client weighs kilograms.
Correct!
Incorrect
The correct answer is: B
Rationale
B: 125 kg. The client’s weight in kilograms is calculated by converting pounds to kilograms using the conversion factor of 2.20462. Therefore, 275 lb divided by 2.20462 equals approximately 124.74 kg, rounding to 125 kg.
A: 100 kg. This option significantly underestimates the client's actual weight, which is much higher than 100 kg when converted from pounds to kilograms.
C: 150 kg. This choice overestimates the client's weight, as the accurate conversion from 275 pounds yields a value lower than 150 kg, making this option invalid.
D: 175 kg. This figure also exceeds the correct conversion from pounds to kilograms, leading to an inaccurate representation of the client’s weight in this context.
Correct Answer: B
Rationale: B: 125 kg. The client’s weight in kilograms is calculated by converting pounds to kilograms using the conversion factor of 2.20462. Therefore, 275 lb divided by 2.20462 equals approximately 124.74 kg, rounding to 125 kg.
A: 100 kg. This option significantly underestimates the client's actual weight, which is much higher than 100 kg when converted from pounds to kilograms.
C: 150 kg. This choice overestimates the client's weight, as the accurate conversion from 275 pounds yields a value lower than 150 kg, making this option invalid.
D: 175 kg. This figure also exceeds the correct conversion from pounds to kilograms, leading to an inaccurate representation of the client’s weight in this context.
Question 12
Regular
A client has a temperature of 39┬░C. The client's temperature is degrees Fahrenheit.
Correct!
Incorrect
The correct answer is: C
Rationale
39°C converts to 102.2°F.
This conversion is accurate using the formula F = (C × 9/5) + 32. Substituting 39 for C yields 102.2°F, confirming the client’s elevated temperature, indicative of fever or infection.
A: 98.6°F This temperature reflects normal body temperature and does not indicate any febrile condition, which is inconsistent with the client's elevated 39°C reading.
B: 100.4°F This temperature suggests low-grade fever but does not accurately represent the client's significant elevation of 39°C, which is higher than 100.4°F.
D: 104.0°F This figure exceeds the client’s actual temperature of 39°C, indicating a severe fever that the client does not have according to the provided information.
Correct Answer: C
Rationale: 39°C converts to 102.2°F.
This conversion is accurate using the formula F = (C × 9/5) + 32. Substituting 39 for C yields 102.2°F, confirming the client’s elevated temperature, indicative of fever or infection.
A: 98.6°F This temperature reflects normal body temperature and does not indicate any febrile condition, which is inconsistent with the client's elevated 39°C reading.
B: 100.4°F This temperature suggests low-grade fever but does not accurately represent the client's significant elevation of 39°C, which is higher than 100.4°F.
D: 104.0°F This figure exceeds the client’s actual temperature of 39°C, indicating a severe fever that the client does not have according to the provided information.
Question 13
Regular
When assessing a client's temperature, the nurse finds it to be 99┬░C. The client's temperature is degrees Celsius.
Correct!
Incorrect
The correct answer is: B
Rationale
99┬░C is equivalent to 37.2┬░C. This temperature falls within the normal range for adults, indicating that the client is not experiencing a fever, as the average body temperature is typically around 37┬░C.
A: 36.0┬░C does not reflect the temperature, as it is significantly lower than the measured value and suggests a possible hypothermic condition.
C: 38.4┬░C indicates a fever, which contradicts the finding of 99┬░C, suggesting that the client is not experiencing an elevated body temperature.
D: 39.6┬░C represents a high fever, which is inconsistent with the recorded temperature of 99┬░C, indicating the absence of a febrile response in this instance.
Correct Answer: B
Rationale: 99┬░C is equivalent to 37.2┬░C. This temperature falls within the normal range for adults, indicating that the client is not experiencing a fever, as the average body temperature is typically around 37┬░C.
A: 36.0┬░C does not reflect the temperature, as it is significantly lower than the measured value and suggests a possible hypothermic condition.
C: 38.4┬░C indicates a fever, which contradicts the finding of 99┬░C, suggesting that the client is not experiencing an elevated body temperature.
D: 39.6┬░C represents a high fever, which is inconsistent with the recorded temperature of 99┬░C, indicating the absence of a febrile response in this instance.
Question 14
Regular
Amoxicillin 250 mg is ordered for a child. The pharmacy supplies the drug in a suspension form. The label reads 500 mg/5 mL. The nurse would administer
Correct!
Incorrect
The correct answer is: B
Rationale
The nurse would administer 2.5 mL.
To achieve the required dose of 250 mg, we calculate the volume needed using the concentration of 500 mg per 5 mL, leading to 2.5 mL as the correct administration amount.
A: 1.0 mL This volume would only provide 100 mg, which is significantly lower than the prescribed dose of 250 mg required for the child.
C: 5.0 mL Administering this amount would result in a dose of 500 mg, exceeding the needed 250 mg and potentially causing harm to the child due to overdose.
D: 7.5 mL This volume would correspond to 750 mg, which is far too high for the child's prescribed dosage, posing serious risks of overdose and adverse effects.
Correct Answer: B
Rationale: The nurse would administer 2.5 mL.
To achieve the required dose of 250 mg, we calculate the volume needed using the concentration of 500 mg per 5 mL, leading to 2.5 mL as the correct administration amount.
A: 1.0 mL This volume would only provide 100 mg, which is significantly lower than the prescribed dose of 250 mg required for the child.
C: 5.0 mL Administering this amount would result in a dose of 500 mg, exceeding the needed 250 mg and potentially causing harm to the child due to overdose.
D: 7.5 mL This volume would correspond to 750 mg, which is far too high for the child's prescribed dosage, posing serious risks of overdose and adverse effects.
Question 15
Regular
A client is to receive 0.5 mg of a drug parenterally. The drug is available in a 2 mg/mL vial. The nurse would administer
Correct!
Incorrect
The correct answer is: A
Rationale
0.25 mL
To administer 0.5 mg of the drug from a 2 mg/mL vial, the nurse calculates the required volume by dividing the desired dose by the concentration, resulting in 0.25 mL.
B: 0.5 mL
Using 0.5 mL would result in administering 1 mg, which exceeds the prescribed dose of 0.5 mg for the client.
C: 1.0 mL
This volume would deliver 2 mg of the drug, significantly surpassing the intended dosage of 0.5 mg and posing a risk of overdose.
D: 2.0 mL
Administering 2.0 mL would equate to a total of 4 mg, which is dramatically higher than the required dosage, leading to potential adverse effects.
Correct Answer: A
Rationale: 0.25 mL
To administer 0.5 mg of the drug from a 2 mg/mL vial, the nurse calculates the required volume by dividing the desired dose by the concentration, resulting in 0.25 mL.
B: 0.5 mL
Using 0.5 mL would result in administering 1 mg, which exceeds the prescribed dose of 0.5 mg for the client.
C: 1.0 mL
This volume would deliver 2 mg of the drug, significantly surpassing the intended dosage of 0.5 mg and posing a risk of overdose.
D: 2.0 mL
Administering 2.0 mL would equate to a total of 4 mg, which is dramatically higher than the required dosage, leading to potential adverse effects.
Question 16
Regular
A client is to receive a 7.5 mg/kg dose of a drug. The client weighs 155 lb. The client would receive ??..per dose
Correct!
Incorrect
The correct answer is: B
Rationale
A client would receive 528.4 mg per dose. The calculation involves converting the client's weight from pounds to kilograms (155 lb ÷ 2.2 = 70.45 kg) and then multiplying by the dosage (7.5 mg/kg). This results in approximately 528.4 mg, confirming the correct dosage.
A: 450.0 mg This amount underestimates the required dosage, failing to account for the client's actual weight in kilograms.
C: 600.0 mg This figure exceeds the calculated dosage, indicating a misunderstanding of the weight-to-drug conversion process necessary for accurate dosing.
D: 675.0 mg This option significantly overshoots the correct calculation, reflecting an inaccurate interpretation of the 7.5 mg/kg dosing requirement based on the client's weight.
Correct Answer: B
Rationale: A client would receive 528.4 mg per dose. The calculation involves converting the client's weight from pounds to kilograms (155 lb ÷ 2.2 = 70.45 kg) and then multiplying by the dosage (7.5 mg/kg). This results in approximately 528.4 mg, confirming the correct dosage.
A: 450.0 mg This amount underestimates the required dosage, failing to account for the client's actual weight in kilograms.
C: 600.0 mg This figure exceeds the calculated dosage, indicating a misunderstanding of the weight-to-drug conversion process necessary for accurate dosing.
D: 675.0 mg This option significantly overshoots the correct calculation, reflecting an inaccurate interpretation of the 7.5 mg/kg dosing requirement based on the client's weight.
Question 17
Regular
The physician writes an order for a client to receive 1 mg of vitamin B12 once every month. Vitamin B12 comes in a 1000 mcg/mL vial. The nurse would administer ?... to the client each month.
Correct!
Incorrect
The correct answer is: B
Rationale
1. 1.0 mL
2. The order specifies 1 mg of vitamin B12, which is equivalent to 1000 mcg. Given that the vial contains 1000 mcg/mL, administering 1.0 mL achieves the required dosage accurately.
3. A: 0.5 mL This volume only provides 500 mcg of vitamin B12, which is insufficient to meet the prescribed 1 mg requirement.
C: 1.5 mL Administering 1.5 mL would exceed the needed dosage, delivering 1500 mcg of vitamin B12, which is not indicated.
D: 2.0 mL Giving 2.0 mL would result in an excessive dosage of 2000 mcg of vitamin B12, far surpassing the doctor's order.
Correct Answer: B
Rationale: 1. 1.0 mL
2. The order specifies 1 mg of vitamin B12, which is equivalent to 1000 mcg. Given that the vial contains 1000 mcg/mL, administering 1.0 mL achieves the required dosage accurately.
3. A: 0.5 mL This volume only provides 500 mcg of vitamin B12, which is insufficient to meet the prescribed 1 mg requirement.
C: 1.5 mL Administering 1.5 mL would exceed the needed dosage, delivering 1500 mcg of vitamin B12, which is not indicated.
D: 2.0 mL Giving 2.0 mL would result in an excessive dosage of 2000 mcg of vitamin B12, far surpassing the doctor's order.
Question 18
Regular
A client is to receive 250 mg of penicillin VK twice daily for 10 days. Penicillin VK is available in a 500 mg tablet. The nurse would instruct the client to take???.tablet at each dose.
Correct!
Incorrect
The correct answer is: B
Rationale
The client would instruct to take 1/2 tablet at each dose.
Taking 1/2 tablet of the 500 mg penicillin VK provides the required 250 mg dosage, which is essential for effective treatment, ensuring the client receives the correct amount as prescribed.
A: 1/4 tablet This dosage only provides 125 mg, insufficient for the prescribed 250 mg, thus failing to meet the treatment requirements.
C: 1 tablet This option delivers 500 mg, exceeding the necessary 250 mg dosage, which could lead to potential side effects and complications in treatment.
D: 2 tablets Two tablets equal 1000 mg, which far surpasses the required dose, posing risks of overdose and ineffective management of the client’s condition.
Correct Answer: B
Rationale: The client would instruct to take 1/2 tablet at each dose.
Taking 1/2 tablet of the 500 mg penicillin VK provides the required 250 mg dosage, which is essential for effective treatment, ensuring the client receives the correct amount as prescribed.
A: 1/4 tablet This dosage only provides 125 mg, insufficient for the prescribed 250 mg, thus failing to meet the treatment requirements.
C: 1 tablet This option delivers 500 mg, exceeding the necessary 250 mg dosage, which could lead to potential side effects and complications in treatment.
D: 2 tablets Two tablets equal 1000 mg, which far surpasses the required dose, posing risks of overdose and ineffective management of the client’s condition.
Question 19
Regular
A client weighs 200 lb. The client is to receive 5 mg/kg per dose of a drug. The client will receive ?. mg of the drug in each dose.
Correct!
Incorrect
The correct answer is: B
Rationale
To determine the dosage, first convert the client's weight from pounds to kilograms, which is approximately 90.7 kg. Multiplying 90.7 kg by 5 mg/kg results in 454.5 mg per dose.
A: 400.0 mg This value reflects a calculation error, as it underestimates the required dosage based on the client’s actual weight and the prescribed mg/kg rate.
C: 500.0 mg This dosage exceeds the calculated requirement, indicating a miscalculation in the conversion or application of the weight-based dosing guideline for the medication.
D: 550.0 mg This amount is significantly higher than necessary, suggesting a misunderstanding of the proper dosage calculation based on the client's weight and the specified dose per kilogram.
Correct Answer: B
Rationale: To determine the dosage, first convert the client's weight from pounds to kilograms, which is approximately 90.7 kg. Multiplying 90.7 kg by 5 mg/kg results in 454.5 mg per dose.
A: 400.0 mg This value reflects a calculation error, as it underestimates the required dosage based on the client’s actual weight and the prescribed mg/kg rate.
C: 500.0 mg This dosage exceeds the calculated requirement, indicating a miscalculation in the conversion or application of the weight-based dosing guideline for the medication.
D: 550.0 mg This amount is significantly higher than necessary, suggesting a misunderstanding of the proper dosage calculation based on the client's weight and the specified dose per kilogram.
Question 20
Regular
A nursing instructor is describing the importance of preventing errors in medication administration and doses. Which of the following would the instructor emphasize as the best method for detecting errors?
Correct!
Incorrect
The correct answer is: B
Rationale
Having each person involved in the process check the dosage is the best method for detecting errors.
This approach fosters a collaborative safety net, increasing diligence and accountability among team members. By having multiple individuals verify the dosage, the likelihood of oversight diminishes, thereby enhancing the overall accuracy of medication administration and significantly reducing the risk of errors.
A: Checking calculations three times relies heavily on a single person's vigilance, which may not capture all potential mistakes, making it less comprehensive than collective verification.
C: Reading drug labels very carefully, while essential, focuses solely on the information provided and may overlook other critical factors, such as human error during the administration process.
D: Checking the dosage in a reputable drug reference does not involve real-time collaboration among team members, which can lead to missed discrepancies that collective checking might catch.
Correct Answer: B
Rationale: Having each person involved in the process check the dosage is the best method for detecting errors.
This approach fosters a collaborative safety net, increasing diligence and accountability among team members. By having multiple individuals verify the dosage, the likelihood of oversight diminishes, thereby enhancing the overall accuracy of medication administration and significantly reducing the risk of errors.
A: Checking calculations three times relies heavily on a single person's vigilance, which may not capture all potential mistakes, making it less comprehensive than collective verification.
C: Reading drug labels very carefully, while essential, focuses solely on the information provided and may overlook other critical factors, such as human error during the administration process.
D: Checking the dosage in a reputable drug reference does not involve real-time collaboration among team members, which can lead to missed discrepancies that collective checking might catch.
Question 21
Regular
After teaching a group of nursing students about measurement systems, the instructor determines that the teaching was successful when the students identify which of the following as units of the metric system?
Correct!
Incorrect
The correct answer is: D
Rationale
Grams are units of the metric system. They are fundamental in measuring mass and are widely used in scientific and medical contexts, making them essential for nursing students to understand.
A: Minims. Minims are units of volume in the apothecaries' system, not part of the metric system, making them irrelevant in a discussion focused on metric measurements.
B: Grains. Grains are a unit of weight in the avoirdupois system and not metric, thus failing to meet the criteria for identification within the metric system.
C: Drams. Drams are also a unit of weight in the avoirdupois system and do not belong to the metric system, making them unsuitable for this context.
Correct Answer: D
Rationale: Grams are units of the metric system. They are fundamental in measuring mass and are widely used in scientific and medical contexts, making them essential for nursing students to understand.
A: Minims. Minims are units of volume in the apothecaries' system, not part of the metric system, making them irrelevant in a discussion focused on metric measurements.
B: Grains. Grains are a unit of weight in the avoirdupois system and not metric, thus failing to meet the criteria for identification within the metric system.
C: Drams. Drams are also a unit of weight in the avoirdupois system and do not belong to the metric system, making them unsuitable for this context.
Question 22
Regular
"Dose desired / dose on hand = dose administered" is the formula for calculating the dose to be administered. Under under which of the following circumstances is this to be used?
Correct!
Incorrect
The correct answer is: C
Rationale
The formula "Dose desired / dose on hand = dose administered" is to be used when the dose desired and dose on hand are in the same system.
This ensures accuracy in dosage calculations, as both figures must be compatible to produce a correct administered dose. Using the same system avoids conversion errors and maintains consistency in measurement, ensuring patient safety and effective treatment.
A: When the physician is not available to calculate the dosage. This scenario does not pertain to the formula itself, which focuses solely on the compatibility of dosage systems.
B: When the dosage is written in the apothecary system. The formula's applicability is not limited to any specific measurement system; it requires congruence between the desired and available doses.
D: When the label of the drug is in the metric system. The formula can be used with any compatible measurement system, so it doesn't depend solely on the metric system for application.
Correct Answer: C
Rationale: The formula "Dose desired / dose on hand = dose administered" is to be used when the dose desired and dose on hand are in the same system.
This ensures accuracy in dosage calculations, as both figures must be compatible to produce a correct administered dose. Using the same system avoids conversion errors and maintains consistency in measurement, ensuring patient safety and effective treatment.
A: When the physician is not available to calculate the dosage. This scenario does not pertain to the formula itself, which focuses solely on the compatibility of dosage systems.
B: When the dosage is written in the apothecary system. The formula's applicability is not limited to any specific measurement system; it requires congruence between the desired and available doses.
D: When the label of the drug is in the metric system. The formula can be used with any compatible measurement system, so it doesn't depend solely on the metric system for application.
Question 23
Regular
A medication is ordered for a client. The dosage he is to receive is 100,000 units. The drug label reads 400,000 units/mL. When setting up the dosage calculation using dimensional analysis, the nurse identifies the unit of measure to be calculated as which of the following?
Correct!
Incorrect
The correct answer is: A
Rationale
A: Milliliters
In this context, the nurse must convert the ordered dosage of 100,000 units into the volume measured in milliliters, as the drug concentration is provided in units per milliliter.
B: Units
Units represent the desired dosage to be administered, not the measure that needs conversion in this calculation. The focus is on determining the corresponding volume in milliliters.
C: Milligrams
Milligrams do not relate to the dosage in this scenario, as the medication's concentration is expressed in units per milliliter, making milligrams irrelevant for this calculation.
D: Tablets
Tablets are a form of medication delivery, but the scenario specifies a dosage in units, necessitating conversion to milliliters rather than consideration of tablets as a measure.
Correct Answer: A
Rationale: A: Milliliters
In this context, the nurse must convert the ordered dosage of 100,000 units into the volume measured in milliliters, as the drug concentration is provided in units per milliliter.
B: Units
Units represent the desired dosage to be administered, not the measure that needs conversion in this calculation. The focus is on determining the corresponding volume in milliliters.
C: Milligrams
Milligrams do not relate to the dosage in this scenario, as the medication's concentration is expressed in units per milliliter, making milligrams irrelevant for this calculation.
D: Tablets
Tablets are a form of medication delivery, but the scenario specifies a dosage in units, necessitating conversion to milliliters rather than consideration of tablets as a measure.
Question 24
Regular
A nursing instructor is describing how to perform dosage calculations using dimensional analysis. Which of the following would the instructor emphasize to ensure accuracy?
Correct!
Incorrect
The correct answer is: D
Rationale
The focus is on the unit of measure set up in a specific order. Emphasizing the arrangement of units ensures that calculations remain consistent and accurate, facilitating the correct conversion and determining the proper dosage. This systematic approach minimizes errors associated with miscalculating the required medication amounts.
A: A formula that is specific to the drug being administered is needed. While specific formulas can aid calculations, they do not address the essential framework of unit organization crucial for accuracy.
B: Decimals rather than fractions are used to determine amounts. Though decimals are often used for precision, the emphasis should be on the proper setup of units, not just the numerical format.
C: Proportions are needed but labels related to units are not important. Ignoring unit labels undermines the integrity of calculations, as accurate conversions depend on correctly identifying and managing the units involved.
Correct Answer: D
Rationale: The focus is on the unit of measure set up in a specific order. Emphasizing the arrangement of units ensures that calculations remain consistent and accurate, facilitating the correct conversion and determining the proper dosage. This systematic approach minimizes errors associated with miscalculating the required medication amounts.
A: A formula that is specific to the drug being administered is needed. While specific formulas can aid calculations, they do not address the essential framework of unit organization crucial for accuracy.
B: Decimals rather than fractions are used to determine amounts. Though decimals are often used for precision, the emphasis should be on the proper setup of units, not just the numerical format.
C: Proportions are needed but labels related to units are not important. Ignoring unit labels undermines the integrity of calculations, as accurate conversions depend on correctly identifying and managing the units involved.
Question 25
Regular
The health care provider orders chlorpromazine 25 mg IM. The drug is supplied as chlorpromazine 50 mg/mL in a 1-mL ampule. How much would the nurse administer?
Correct!
Incorrect
The correct answer is: B
Rationale
25 mg of chlorpromazine corresponds to 0.5 mL from a 50 mg/mL solution, as the calculation involves dividing the required dose by the concentration (25 mg ÷ 50 mg/mL = 0.5 mL).
A: 0.25 mL This volume represents only half of the required dose, leading to insufficient medication administration for the patient’s needs.
C: 0.75 mL Administering this volume exceeds the necessary dosage, potentially resulting in an overdose and unnecessary side effects for the patient.
D: 1.0 mL This amount overshoots the required medication, delivering double the intended dose, which can be harmful.
Correct Answer: B
Rationale: 25 mg of chlorpromazine corresponds to 0.5 mL from a 50 mg/mL solution, as the calculation involves dividing the required dose by the concentration (25 mg ÷ 50 mg/mL = 0.5 mL).
A: 0.25 mL This volume represents only half of the required dose, leading to insufficient medication administration for the patient’s needs.
C: 0.75 mL Administering this volume exceeds the necessary dosage, potentially resulting in an overdose and unnecessary side effects for the patient.
D: 1.0 mL This amount overshoots the required medication, delivering double the intended dose, which can be harmful.
Question 26
Regular
A client is prescribed 500 mg of ampicillin IM. The drug is supplied in a multidose vial that requires reconstitution with 2 mL sterile water for injection. The resulting concentration contains 250 mg/mL. How much of the drug would the nurse administer?
Correct!
Incorrect
The correct answer is: D
Rationale
To administer 500 mg of ampicillin, the nurse needs to give 2.0 mL of the reconstituted solution, as the concentration is 250 mg/mL.
The concentration of 250 mg/mL means that 2.0 mL contains exactly 500 mg of ampicillin. This calculation is crucial for ensuring the correct dosage is administered to the client effectively.
A: 0.5 mL This volume only provides 125 mg of ampicillin, which is significantly lower than the prescribed 500 mg.
B: 1.0 mL Administering 1.0 mL would deliver only 250 mg of ampicillin, failing to meet the required dosage for the client.
C: 1.5 mL This amount yields 375 mg of ampicillin, still insufficient to fulfill the prescribed dosage of 500 mg effectively.
Correct Answer: D
Rationale: To administer 500 mg of ampicillin, the nurse needs to give 2.0 mL of the reconstituted solution, as the concentration is 250 mg/mL.
The concentration of 250 mg/mL means that 2.0 mL contains exactly 500 mg of ampicillin. This calculation is crucial for ensuring the correct dosage is administered to the client effectively.
A: 0.5 mL This volume only provides 125 mg of ampicillin, which is significantly lower than the prescribed 500 mg.
B: 1.0 mL Administering 1.0 mL would deliver only 250 mg of ampicillin, failing to meet the required dosage for the client.
C: 1.5 mL This amount yields 375 mg of ampicillin, still insufficient to fulfill the prescribed dosage of 500 mg effectively.
Question 27
Regular
A home health care nurse is reviewing a client's medication during a home visit. The client is prescribed atorvastatin 10 mg daily, a change from his previous order of 20 mg daily. The client shows the nurse the medication container from the pharmacy. The label reads atorvastatin 20 mg. The nurse determines that the client is taking the correct dosage when the client states he is taking which of the following
Correct!
Incorrect
The correct answer is: A
Rationale
A: 1/2 tablet every day
Taking 1/2 tablet of atorvastatin 20 mg daily equals the prescribed dose of 10 mg. This aligns with the client's new prescription, ensuring the correct dosage is administered consistently.
B: 1 tablet every day
Administering 1 tablet of atorvastatin 20 mg daily would double the prescribed dosage, leading to potential overdose and increased risk of side effects, which is not appropriate.
C: 1/2 tablet every other day
Taking 1/2 tablet every other day would result in only 5 mg of atorvastatin daily, failing to meet the new prescription requirement of 10 mg each day.
D: 1 tablet every other day
Using 1 tablet every other day would provide a total of 10 mg over two days, but this does not satisfy the daily dosage requirement prescribed by the healthcare provider.
Correct Answer: A
Rationale: A: 1/2 tablet every day
Taking 1/2 tablet of atorvastatin 20 mg daily equals the prescribed dose of 10 mg. This aligns with the client's new prescription, ensuring the correct dosage is administered consistently.
B: 1 tablet every day
Administering 1 tablet of atorvastatin 20 mg daily would double the prescribed dosage, leading to potential overdose and increased risk of side effects, which is not appropriate.
C: 1/2 tablet every other day
Taking 1/2 tablet every other day would result in only 5 mg of atorvastatin daily, failing to meet the new prescription requirement of 10 mg each day.
D: 1 tablet every other day
Using 1 tablet every other day would provide a total of 10 mg over two days, but this does not satisfy the daily dosage requirement prescribed by the healthcare provider.
Quiz Complete!
Dosage Calculation and Medication Administration
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