HESI RN
HESI Pharmacology Quizlet
1. A client is prescribed phenytoin (Dilantin) for seizure control. Which statement by the client indicates an understanding of the medication?
- A. I should brush and floss my teeth regularly.
- B. I should take the medication with antacids.
- C. I can stop taking the medication once my seizures are controlled.
- D. I should avoid drinking milk while taking this medication.
Correct answer: A
Rationale: The correct statement is 'I should brush and floss my teeth regularly.' Phenytoin (Dilantin) can cause gingival hyperplasia, so maintaining good oral hygiene is essential. Taking the medication with antacids can affect its absorption, so it should not be done. It is crucial not to stop taking the medication abruptly, even if seizures are controlled. There is no specific requirement to avoid milk while taking phenytoin (Dilantin).
2. A client is prescribed atorvastatin (Lipitor) for hyperlipidemia. Which instruction should the nurse include in the teaching plan?
- A. Take the medication in the morning.
- B. Avoid consuming grapefruit juice.
- C. Increase intake of dairy products.
- D. Take the medication with food.
Correct answer: B
Rationale: The correct instruction for the nurse to include in the teaching plan is to advise the client to avoid consuming grapefruit juice. Grapefruit juice can increase the risk of atorvastatin (Lipitor) toxicity by inhibiting its metabolism. Atorvastatin is typically taken in the evening because cholesterol synthesis occurs at night. Increasing dairy intake is not specifically recommended for atorvastatin use, and the medication can be taken with or without food.
3. A client has begun therapy with theophylline (Theo-24). The nurse tells the client to limit the intake of which of the following while taking this medication?
- A. Oranges and pineapple
- B. Coffee, cola, and chocolate
- C. Oysters, lobster, and shrimp
- D. Cottage cheese, cream cheese, and dairy creamers
Correct answer: B
Rationale: Theophylline is a xanthine bronchodilator. Xanthines are found in coffee, cola, and chocolate. These foods should be limited while taking theophylline to prevent potential drug interactions or adverse effects.
4. A histamine (H2)-receptor antagonist will be prescribed for a client. The nurse understands that which medications are H2-receptor antagonists? Select one that doesn't apply.
- A. Nizatidine (Axid)
- B. Ranitidine (Zantac)
- C. Famotidine (Pepcid)
- D. Ibuprofen (Motrin)
Correct answer: D
Rationale: H2-receptor antagonists like Nizatidine, Ranitidine, and Famotidine are used to suppress gastric acid secretion, relieve heartburn symptoms, and prevent complications of peptic ulcer disease. Ibuprofen, on the other hand, is a nonsteroidal anti-inflammatory drug (NSAID) commonly used for pain relief and inflammation, but it is not an H2-receptor antagonist. It is essential to differentiate between these medication classes to ensure appropriate treatment for gastrointestinal conditions.
5. A client is taking phenytoin (Dilantin) for seizure control, and a sample for a serum drug level is drawn. Which of the following indicates a therapeutic serum drug range?
- A. 5 to 10 mcg/mL
- B. 10 to 20 mcg/mL
- C. 20 to 30 mcg/mL
- D. 30 to 40 mcg/mL
Correct answer: B
Rationale: The correct therapeutic serum drug level range for phenytoin (Dilantin) is 10 to 20 mcg/mL. This range is considered optimal for seizure control while minimizing the risk of toxicity. Monitoring drug levels helps ensure that the client is within the therapeutic range for effective treatment.
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