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 is prescribed lisinopril for hypertension. What potential adverse effect should the practical nurse (PN) instruct the client to monitor for?
- A. Persistent cough
- B. Constipation
- C. Increased appetite
- D. Dry skin
Correct answer: A
Rationale: Corrected Rationale: Lisinopril, an ACE inhibitor, commonly causes a persistent dry cough as an adverse effect. This cough is distinctive and different from other causes of cough. It is essential for the client to be aware of this potential side effect as it can indicate a serious issue. Instructing the client to monitor for a persistent cough and report it to the healthcare provider promptly is crucial to ensure timely intervention and management. Choices B, C, and D are incorrect as constipation, increased appetite, and dry skin are not commonly associated with lisinopril use for hypertension. Therefore, the practical nurse should focus on educating the client about monitoring and reporting a persistent cough.
3. What instruction should the nurse include in the teaching plan for a client prescribed ranitidine for a peptic ulcer?
- 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 prescribed ranitidine for a peptic ulcer is to take the medication in the morning before breakfast. This timing helps reduce stomach acid production throughout the day, providing optimal therapeutic effects. Option B is incorrect because taking ranitidine with meals is not the recommended timing. Option C is incorrect as there is no specific contraindication against taking ranitidine with antacids. Option D is incorrect as the medication should not be taken at bedtime but rather in the morning before breakfast.
4. When a client with hypertension is prescribed losartan, what potential side effect should the nurse monitor for?
- A. Hyperkalemia
- B. Dry cough
- C. Bradycardia
- D. Headache
Correct answer: B
Rationale: The correct answer is B: Dry cough. Losartan, an angiotensin II receptor blocker, can lead to a dry cough as a potential side effect. This occurs due to the drug's effect on the bradykinin pathway in the lungs. Monitoring for a dry cough is essential as it may indicate the need for further evaluation or medication adjustment to manage this adverse reaction.
5. Phenytoin is prescribed for a client who has a seizure disorder. Which statement by the client needs to be clarified by the healthcare provider?
- A. I should notify the healthcare provider if the color of my urine turns pink.
- B. I should never stop taking this medication abruptly.
- C. I should monitor my glucose levels closely since I am diabetic.
- D. I should take the medicine with antacids if gastric upset occurs.
Correct answer: D
Rationale: The correct answer is D because antacids should not be taken with phenytoin as they can decrease its effects. Taking antacids with phenytoin is not recommended. Choice A is correct; pink discoloration of urine can occur with phenytoin use. Choice B is also correct; abruptly stopping phenytoin can lead to seizures. Choice C is correct; monitoring glucose levels is important as phenytoin can increase glucose levels. Therefore, the statement about using antacids with phenytoin needs clarification.
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