Antianginal Drugs

D: Non-polyvinylchloride (non-PVC) plastic intravenous bags and tubing must be used. This is essential because nitroglycerin can adhere to PVC materials, potentially resulting in reduced drug efficacy and compromised treatment outcomes for patients experiencing acute myocardial infarction. A: The solution will be slightly colored green or blue. Nitroglycerin solutions are typically clear and colorless, not exhibiting any shades that would suggest the presence of color. B: The intravenous form is given by bolus injection. Nitroglycerin is administered as a continuous infusion to maintain stable therapeutic levels, rather than using a bolus approach. C: It can be given in infusions with other medications. Co-administration with other medications is not recommended due to potential interactions that could compromise the effectiveness of nitroglycerin and patient safety.

If the chest pain is not relieved after one tablet, call 911 immediately. This instruction is crucial as it ensures the patient receives timely medical assistance in case of a severe or life-threatening condition such as a heart attack. A: Take up to 5 doses at 15-minute intervals for an angina attack. This option suggests an inappropriate dosage frequency that could delay necessary medical intervention during a serious situation. B: If the tablet does not dissolve quickly, chew the tablet for maximal effect. Chewing the tablet can alter its absorption and effectiveness, potentially leading to inadequate relief from angina symptoms. D: Wait 1 minute between doses of sublingual tablets, up to 3 doses. This instruction underestimates the urgency of severe pain, where immediate action is required if symptoms persist after the first tablet.

A: Classic. This golfer is experiencing classic angina, characterized by chest pain triggered by exertion, such as golfing, and relief through rest and sublingual nitroglycerin, indicating stable coronary artery disease. B: Variant. Variant angina, or Prinzmetal, typically occurs at rest rather than during exertion, making it inconsistent with the golfer's symptoms that arise specifically during physical activity. C: Unstable. Unstable angina presents with unpredictable pain, often occurring at rest or with minimal exertion, which does not align with the golfer's experience of pain resolving quickly after activity. D: Prinzmetal. Prinzmetal angina is caused by coronary artery spasm, usually occurring at rest and unrelated to exertion, contrasting sharply with the golfer's exertion-induced symptoms and their subsequent relief.

A: Blood pressure of 88/62 mm Hg Low blood pressure indicates a risk of hypotension with nitrate use. Nitrates can further lower blood pressure, potentially leading to inadequate perfusion, especially in patients presenting with chest pain. B: Apical pulse rate of 110 beats/min While tachycardia indicates increased heart workload, it does not directly contraindicate nitrates. The primary concern is blood pressure, not pulse rate, in assessing nitrate safety. C: History of renal disease A history of renal disease may complicate medication management, but it does not specifically highlight an immediate risk related to nitrate administration, unlike low blood pressure, which is critical. D: History of a myocardial infarction 2 years ago A past myocardial infarction is relevant for overall cardiovascular risk, yet it does not present an acute contraindication for nitrates. Current blood pressure status is more critical for safe use.

A high-fiber diet with plenty of fluids will help prevent the constipation that may occur. Calcium channel blockers can lead to gastrointestinal side effects, including constipation, making dietary adjustments essential for patient comfort and medication adherence. This proactive approach enables patients to manage potential adverse effects effectively while continuing their treatment regimen. A: Chew the tablet for faster release of the medication. Chewing the tablet could alter the intended absorption and efficacy of the drug, potentially leading to unpredictable effects and dosage inaccuracies. B: To increase the effect of the drug, take it with grapefruit juice. Grapefruit juice can interact negatively with calcium channel blockers, potentially increasing drug levels and causing serious side effects rather than enhancing efficacy. C: If the adverse effects of chest pain, fainting, or dyspnea occur, discontinue the medication immediately. Discontinuing medication without consulting a healthcare provider can lead to serious health risks, including withdrawal symptoms or exacerbation of the underlying condition.

Rotate application sites with each dose. This practice helps prevent skin irritation and sensitization, allowing the skin to recover and ensuring optimal absorption of the medication. Using different areas enhances the effectiveness of the transdermal delivery system. B: Use only the chest area for application sites. Limiting application to the chest restricts site rotation, increasing the risk of skin irritation and diminishing the therapeutic efficacy of the patches. C: Temporarily remove the patch if you go swimming. Removing the patch during swimming can disrupt the continuous delivery of medication, affecting overall treatment effectiveness and patient outcomes. D: Apply the patch to the same site each time. Consistently using the same site can lead to localized skin reactions, reducing absorption and potentially impacting the medication's effectiveness over time.

Monitoring blood glucose levels for possible hypoglycemia or hyperglycemia is crucial for this patient. Beta blockers can mask signs of hypoglycemia, making it important for diabetic patients to regularly assess their blood sugar levels. A: Watch for unusual weight loss. Unusual weight loss is not a common adverse effect related to beta blockers; instead, weight gain may be more frequently observed in patients taking these medications. B: Monitor your pulse for increased heart rate. Beta blockers typically decrease heart rate rather than increase it, making this advice irrelevant for patients under such medication as part of their therapy. C: Use the hot tub and sauna at the gym as long as time is limited to 15 minutes. Heat exposure can exacerbate certain conditions and may not be advisable for patients on beta blockers, particularly those with hyperthyroidism.

Removing the patch at bedtime and applying a new one in the morning helps prevent the development of tolerance to transdermal nitroglycerin therapy by allowing a nitrate-free interval overnight. This strategy maintains the drug's effectiveness and optimizes therapeutic benefits. A: Omit a dose once a week. This approach may not provide consistent nitrate-free periods necessary for effectively managing tolerance and could lead to fluctuating therapeutic levels. B: Leave the patch on for 2 days at a time. Prolonged continuous exposure may increase tolerance rather than mitigate it, as the body adapts to constant drug presence without a break. C: Cut the patch in half for 1 week until the tolerance subsides. Reducing the dose may not sufficiently address the issue of tolerance, potentially leading to inadequate therapeutic effects during treatment.

Bradycardia. Monitoring for bradycardia is essential when a patient is on beta blockers, as these medications decrease heart rate by blocking adrenergic receptors, potentially leading to excessively low heart rates and associated risks. A: Nervousness. Beta blockers typically reduce anxiety symptoms, and nervousness is not a common adverse effect associated with their use, making it an unlikely concern for this patient. B: Hypertension. Beta blockers are primarily used to manage hypertension and angina, so experiencing hypertension while on these medications is unusual, indicating a potential mismanagement of the condition. D: Dry cough. A dry cough is more commonly linked to ACE inhibitors rather than beta blockers, which do not typically cause this symptom as a side effect during treatment.

Transdermal nitroglycerin patches are most appropriately used to prevent the occurrence of angina. These patches provide a steady release of medication over time, effectively managing chronic conditions like angina by maintaining therapeutic levels of nitroglycerin, thus preventing episodes before they arise. A: To treat acute chest pain. This option suggests immediate relief, whereas transdermal patches are designed for ongoing prevention, not acute treatment. B: To relieve shortness of breath. While nitroglycerin can influence heart function, it primarily targets angina prevention rather than directly addressing respiratory symptoms or shortness of breath. D: To keep the heart rate from rising too high during exercise. The patches do not specifically regulate heart rate; they focus on preventing angina, which may indirectly affect exercise tolerance.

Stop the activity, and lie down or sit down; Call 911 if the pain is not relieved after taking one sublingual tablet; Place a tablet under the tongue; Take another sublingual tablet if chest pain is not relieved after 5 minutes, up to three total. Stopping activity and resting helps reduce heart strain, while using sublingual nitroglycerin correctly and seeking emergency assistance if pain persists are crucial for managing potential cardiac issues effectively. B: Call 911 immediately. Immediate calling may not be necessary if the patient can manage the situation with nitroglycerin and monitoring their symptoms first. D: Call 911 if the pain is not relieved after three sublingual tablets in 30 minutes. Waiting for three tablets may delay critical care, especially if symptoms worsen. F: Place a tablet in the space between the gum and cheek. This method is not the recommended administration route for sublingual nitroglycerin, which should be placed directly under the tongue.

Prolonged QT interval on the electrocardiogram and decreased liver function are significant contraindications for ranolazine therapy. These conditions can enhance the risk of serious cardiac arrhythmias and alter drug metabolism, respectively. A: Type 2 diabetes mellitus This condition does not directly contraindicate ranolazine use, as it primarily affects glucose metabolism rather than cardiac function or drug clearance. C: Heart failure While heart failure can complicate treatment, it is not a definitive contraindication for ranolazine therapy in all patients. D: Closed-angle glaucoma This condition does not relate to the pharmacological effects of ranolazine, making it irrelevant to its contraindications.

5 mL To administer a metoprolol dose of 5 mg with a concentration of 1 mg/mL, the nurse must draw up 5 mL of the solution. This calculation is straightforward, ensuring the correct dosage is delivered effectively. A: 1 mL This volume only provides 1 mg, which is insufficient for the prescribed 5 mg dosage. B: 2 mL Drawing up 2 mL would yield only 2 mg, falling short of the required amount. C: 10 mL This amount exceeds the necessary dose, delivering 10 mg instead of the prescribed 5 mg.