HESI RN
HESI Pharmacology Practice Exam
1. A client is receiving intravenous gentamicin (Garamycin). Which of the following findings should prompt the nurse to notify the healthcare provider immediately?
- A. Nausea
- B. Hearing loss
- C. Headache
- D. Diarrhea
Correct answer: B
Rationale: Gentamicin (Garamycin) is an aminoglycoside antibiotic known to cause ototoxicity, which can manifest as hearing loss. Hearing loss is a serious adverse effect that should be reported promptly to the healthcare provider to prevent further complications or adjust the treatment regimen. Nausea, headache, and diarrhea are common side effects of gentamicin but are not as severe or urgent as hearing loss in this context.
2. A client is prescribed alendronate (Fosamax) for the treatment of osteoporosis. Which instruction should the nurse provide to the client?
- A. Take the medication at bedtime.
- B. Take the medication with a full glass of water.
- C. Lie down for 30 minutes after taking the medication.
- D. Take the medication with food to avoid gastrointestinal upset.
Correct answer: B
Rationale: The correct instruction for a client prescribed alendronate (Fosamax) for osteoporosis is to take the medication with a full glass of water first thing in the morning. It should be taken at least 30 minutes before any food, beverage, or other medication. The client should also remain upright for at least 30 minutes after taking the medication to prevent esophageal irritation. Taking alendronate at bedtime or with food is not recommended as it may reduce its absorption and effectiveness.
3. A client is instructed to take levothyroxine (Synthroid). The medication should be taken:
- A. With food
- B. At lunchtime
- C. On an empty stomach
- D. At bedtime with a snack
Correct answer: C
Rationale: Levothyroxine should be taken on an empty stomach to enhance absorption. Taking it with food or at bedtime can interfere with its absorption, reducing its effectiveness. Therefore, it is essential for the client to take levothyroxine on an empty stomach to ensure optimal therapeutic outcomes.
4. A client with hyperlipidemia is prescribed simvastatin (Zocor). Which instruction should the nurse include in the teaching plan?
- A. Take the medication in the evening.
- B. Report any muscle pain to your healthcare provider.
- C. Avoid increasing your intake of grapefruit juice.
- D. Do not take the medication with a high-fat meal.
Correct answer: B
Rationale: Muscle pain can be a sign of a serious side effect of simvastatin (Zocor) known as rhabdomyolysis and should be reported to the healthcare provider immediately. The medication is usually taken in the evening to coincide with the body's natural production of cholesterol. Grapefruit juice should be avoided as it can increase the risk of toxicity by affecting the metabolism of the medication. Additionally, taking simvastatin with a high-fat meal can reduce its effectiveness, so it should be taken without food or with a light meal.
5. The client with breast cancer is receiving cyclophosphamide (Neosar). The nurse is reinforcing medication instructions and advises the client to:
- A. Take the medication with food.
- B. Increase fluid intake to 2000 to 3000 mL daily.
- C. Decrease sodium intake while taking the medication.
- D. Increase potassium intake while taking the medication.
Correct answer: B
Rationale: The correct answer is to increase fluid intake to 2000 to 3000 mL daily. Cyclophosphamide can cause hemorrhagic cystitis as a toxic effect. By increasing fluid intake, the client can help prevent this complication by promoting frequent urination, which reduces the concentration of the drug and its metabolites in the bladder. This dilution effect can help reduce the risk of bladder toxicity.
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