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 diagnosis of generalized anxiety disorder is prescribed buspirone. The nurse should instruct the client that this medication may have which potential side effect?
- A. Drowsiness
- B. Dry mouth
- C. Nausea
- D. Headache
Correct answer: A
Rationale: The correct potential side effect of buspirone is drowsiness. It is important for clients to be informed about this side effect, as it can affect their ability to perform tasks that require full alertness, such as driving. Clients should be advised to avoid activities that require mental alertness until they know how the medication affects them. Dry mouth is a common side effect of some other medications used for anxiety, such as benzodiazepines. Nausea and headache are not typically associated with buspirone use.
3. A client with chronic heart failure is prescribed spironolactone. The nurse should monitor for which potential side effect?
- A. Hyperkalemia
- B. Hypokalemia
- C. Hypernatremia
- D. Hyponatremia
Correct answer: A
Rationale: The correct answer is A: Hyperkalemia. Spironolactone is a potassium-sparing diuretic that can lead to an excess of potassium in the body, resulting in hyperkalemia. This side effect is important to monitor in clients taking spironolactone, especially those with chronic heart failure, as hyperkalemia can lead to serious cardiac complications.
4. A client with rheumatoid arthritis is prescribed leflunomide. What instruction should the nurse include in the client's teaching plan?
- A. Avoid alcohol while taking this medication.
- B. Take this medication with food to decrease gastrointestinal upset.
- C. Avoid sunlight while taking this medication.
- D. Report any signs of infection to the healthcare provider.
Correct answer: A
Rationale: Leflunomide can increase sensitivity to sunlight. While it is important to avoid excessive sun exposure, the critical instruction for the client is to avoid alcohol while taking this medication. Alcohol can potentiate the hepatotoxic effects of leflunomide, making it crucial for the client to abstain from alcohol consumption to prevent liver damage.
5. How should the healthcare provider schedule the administering of propylthiouracil (PTU)?
- A. Offer both drugs together with a meal
- B. Give parental dose once every 24 hours
- C. Schedule both medications at bedtime
- D. Administer iodine one hour before PTU
Correct answer: D
Rationale: Administering iodine one hour before PTU is crucial to ensure proper absorption and effectiveness of PTU. This timing helps optimize the therapeutic benefits of PTU by allowing it to be absorbed efficiently without interference from iodine, ultimately leading to better treatment outcomes for the patient. Choices A, B, and C are incorrect because offering both drugs together with a meal, giving parental dose once every 24 hours, and scheduling both medications at bedtime do not address the specific timing requirement of administering iodine before PTU for optimal absorption.
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