HESI RN
Pharmacology HESI
1. 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.
2. Colcrys (colchicine) is prescribed for a client with a diagnosis of gout. The nurse reviews the client's medical history in the health record, knowing that the medication would be contraindicated in which disorder?
- A. Myxedema
- B. Renal failure
- C. Hypothyroidism
- D. Diabetes mellitus
Correct answer: B
Rationale: Colchicine is contraindicated in clients with severe gastrointestinal, renal, hepatic, or cardiac disorders, or blood dyscrasias. Renal failure is a condition where the kidneys fail to function adequately, leading to the accumulation of toxins in the body. Since colchicine is contraindicated in clients with renal disorders, including renal failure, it could exacerbate the condition and worsen the client's health. Myxedema, hypothyroidism, and diabetes mellitus are not contraindications for colchicine use. While these conditions may require caution or monitoring when administering colchicine, they are not absolute contraindications like renal failure.
3. A client with severe acne is seen in the clinic, and the healthcare provider prescribes isotretinoin. The nurse reviews the client's medication record and would contact the healthcare provider if the client is taking which medication?
- A. Vitamin A
- B. Digoxin (Lanoxin)
- C. Furosemide (Lasix)
- D. Phenytoin (Dilantin)
Correct answer: A
Rationale: Isotretinoin is a metabolite of vitamin A, which can lead to toxicity when taken together. Therefore, it is crucial to avoid concurrent use of vitamin A supplements with isotretinoin. Contacting the healthcare provider to discuss discontinuing vitamin A supplements is important to prevent potential adverse effects. Choices B, C, and D are incorrect as they are not known to interact significantly with isotretinoin.
4. Salicylic acid is prescribed for a client with a diagnosis of psoriasis. The nurse monitors the client, knowing that which of the following would indicate the presence of systemic toxicity from this medication?
- A. Tinnitus
- B. Diarrhea
- C. Constipation
- D. Decreased respirations
Correct answer: A
Rationale: The correct answer is A: Tinnitus. Salicylic acid can lead to systemic toxicity, known as salicylism, which may manifest with symptoms like tinnitus, dizziness, hyperventilation, and mental disturbances. Tinnitus is a common early sign of salicylism and should be monitored closely by the nurse to prevent further complications.
5. The client with a gastric ulcer has a prescription for sucralfate (Carafate), 1 g by mouth four times daily. The nurse schedules the medication for which times?
- A. With meals and at bedtime
- B. Every 6 hours around the clock
- C. One hour after meals and at bedtime
- D. One hour before meals and at bedtime
Correct answer: D
Rationale: Sucralfate is a gastric protectant that forms a protective coating over the ulcer. Administering sucralfate 1 hour before meals and at bedtime is important to create a barrier that protects the ulcer from gastric acid and mechanical irritation. This timing allows sucralfate to effectively coat the ulcer site and provide the desired therapeutic effect, enhancing its efficacy in promoting ulcer healing and symptom relief.
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