HESI LPN
Pharmacology HESI Practice
1. A client with a diagnosis of schizophrenia is prescribed clozapine. The nurse should monitor the client for which potential side effect?
- A. Agranulocytosis
- B. Dry mouth
- C. Weight gain
- D. Hypersalivation
Correct answer: A
Rationale: The correct answer is Agranulocytosis. Clozapine is known to potentially cause agranulocytosis, a serious condition characterized by a dangerously low white blood cell count. Monitoring white blood cell counts is crucial to detect this side effect early and prevent complications. Choices B, C, and D are incorrect because dry mouth, weight gain, and hypersalivation are not typically associated with clozapine use. While dry mouth can be a common side effect of some antipsychotic medications, it is not specifically linked to clozapine. Weight gain can occur with certain antipsychotics, but clozapine is more commonly associated with metabolic side effects. Hypersalivation is not a common side effect of clozapine.
2. A client with a history of hypertension is prescribed hydrochlorothiazide. The practical nurse should monitor the client for which potential adverse effect?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hypernatremia
- D. Hyponatremia
Correct answer: B
Rationale: Corrected Rationale: Hydrochlorothiazide is a diuretic that can lead to potassium loss, resulting in hypokalemia. Monitoring for hypokalemia is essential because it can cause various complications such as cardiac dysrhythmias. Therefore, the practical nurse should closely watch for signs and symptoms of low potassium levels in clients taking hydrochlorothiazide. Incorrect Rationale for Other Choices: A. Hyperkalemia is not typically associated with hydrochlorothiazide use; instead, it is more commonly linked to medications like ACE inhibitors or potassium-sparing diuretics. C. Hypernatremia is unlikely with hydrochlorothiazide use as it tends to cause sodium loss. D. Hyponatremia is more commonly associated with conditions where there is excessive water intake or syndrome of inappropriate antidiuretic hormone secretion (SIADH), rather than with hydrochlorothiazide use.
3. 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.
4. When educating a client about the adverse effects of conjunctivitis, what is a serious condition that requires prompt attention?
- A. Contact lens irritation
- B. Decreased sex drive
- C. Brown spots on the skin
- D. Epigastric pain unrelieved by antacids
Correct answer: D
Rationale: Epigastric pain unrelieved by antacids is a concerning symptom that may indicate a more serious underlying condition such as a perforated ulcer. This symptom requires immediate medical attention to prevent further complications.
5. A client who is being discharged to home asks the practical nurse (PN) for a dose of hydrocodone before leaving the hospital. How should the PN respond to this client's request?
- A. Determine if a take-home prescription for hydrocodone was provided and, if so, tell him to take one of them.
- B. Encourage him to wait until he is at home to take a medication that might impair reasoning.
- C. Give him a tablet from the hospital stock and tell him to wait until he is almost home to take it.
- D. Ask him to describe the location and severity of the pain and to rate it on a scale from 1 to 10.
Correct answer: D
Rationale: Hydrocodone is a narcotic analgesic, and the practical nurse should gather more data from the client about the pain he is experiencing before giving the medication. The client's need for pain medication should be addressed, and pain medication should not be withheld because he is going home.
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