HESI LPN
HESI Practice Test Pharmacology
1. The practical nurse is assigned a client on digoxin therapy. Which finding is likely to predispose this client to developing digoxin toxicity?
- A. Hyponatremia
- B. Hypernatremia
- C. Hyperkalemia
- D. Hypokalemia
Correct answer: D
Rationale: Hypokalemia predisposes a client on digoxin to digoxin toxicity. Symptoms of digoxin toxicity include abdominal pain, anorexia, nausea, vomiting, visual disturbances, bradycardia, and atrioventricular (AV) dissociation. Therefore, assessment of serum potassium levels and prompt correction of hypokalemia are crucial interventions for clients taking digoxin.
2. A client with a history of atrial fibrillation is prescribed amiodarone. The nurse should monitor for which potential side effect?
- A. Pulmonary toxicity
- B. Liver toxicity
- C. Thyroid dysfunction
- D. Bradycardia
Correct answer: A
Rationale: Corrected Rationale: Amiodarone is known to cause pulmonary toxicity, which can manifest as respiratory symptoms. Monitoring for signs such as cough, dyspnea, or chest pain is essential to detect this serious side effect early and prevent further complications. Choices B, C, and D are incorrect because while amiodarone can also cause liver toxicity, thyroid dysfunction, and bradycardia, pulmonary toxicity is the most serious side effect that requires immediate attention due to its potential life-threatening consequences.
3. A client with chronic obstructive pulmonary disease (COPD) is prescribed ipratropium. The nurse should assess the client for which potential side effect?
- A. Nausea
- B. Dry mouth
- C. Cough
- D. Palpitations
Correct answer: B
Rationale: The correct answer is B: Dry mouth. Ipratropium can cause dry mouth as a common side effect due to its anticholinergic effects. Anticholinergic medications like ipratropium can lead to decreased salivary flow, resulting in dry mouth. Choices A, C, and D are incorrect because nausea, cough, and palpitations are not commonly associated with ipratropium use.
4. A client with hypertension is prescribed metoprolol. The healthcare provider should monitor the client for which potential side effect?
- A. Bradycardia
- B. Tachycardia
- C. Hyperglycemia
- D. Hyponatremia
Correct answer: A
Rationale: Metoprolol is a beta-blocker that works by slowing the heart rate and reducing blood pressure. One of the potential side effects of metoprolol is bradycardia, which is a slow heart rate. Monitoring for bradycardia is crucial as it can be an adverse effect of this medication.
5. A client with gastroesophageal reflux disease (GERD) is prescribed omeprazole. The nurse should reinforce which instruction?
- A. Take this medication in the morning before breakfast.
- B. Take this medication with meals.
- C. Avoid taking this medication with antacids.
- D. Take this medication at bedtime.
Correct answer: A
Rationale: The correct instruction for a client with GERD prescribed omeprazole is to take the medication in the morning before breakfast. Omeprazole works best when taken on an empty stomach, approximately 30 minutes before the first meal of the day. This timing maximizes its effectiveness in reducing stomach acid production and helps manage symptoms of GERD more efficiently. Choice B is incorrect because taking omeprazole with meals may reduce its efficacy as it needs an empty stomach for optimal absorption. Choice C is incorrect because omeprazole can be taken with or without food, but it should not be taken with antacids as they can affect its absorption. Choice D is incorrect because taking omeprazole at bedtime is less effective compared to taking it before breakfast due to the circadian rhythm of gastric acid secretion.
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