HESI RN
HESI Pharmacology Practice Exam
1. A client is receiving dietary instructions from a nurse regarding warfarin sodium (Coumadin) therapy. The nurse advises the client to avoid which food item?
- A. Grapes
- B. Spinach
- C. Watermelon
- D. Cottage cheese
Correct answer: B
Rationale: The correct answer is B: Spinach. Spinach is high in vitamin K, which antagonizes the effects of warfarin sodium, an anticoagulant medication. Clients taking warfarin should avoid consuming foods rich in vitamin K, like spinach, to maintain the medication's effectiveness. Grapes (choice A), watermelon (choice C), and cottage cheese (choice D) do not interfere with the effects of warfarin, so they are safe for the client to consume while on warfarin therapy.
2. What instruction should be included in the client's teaching plan when prescribed montelukast (Singulair) for asthma?
- A. Take the medication as needed for asthma attacks.
- B. Take the medication in the evening.
- C. Increase fluid intake while taking this medication.
- D. Use the medication before exercise.
Correct answer: B
Rationale: The correct instruction to include in the teaching plan for a client prescribed montelukast (Singulair) is to take the medication in the evening. Montelukast is most effective when taken in the evening to provide optimal control of asthma symptoms. It is not intended for use as a rescue medication for asthma attacks. There is no specific recommendation to increase fluid intake or use the medication before exercise in relation to montelukast therapy.
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. A client has been prescribed cyclosporine (Sandimmune). Which food item should the client avoid based on the medication's interaction?
- A. Red meats
- B. Orange juice
- C. Grapefruit juice
- D. Green, leafy vegetables
Correct answer: C
Rationale: Grapefruit juice should be avoided when taking cyclosporine because it inhibits the metabolism of the medication, leading to increased blood levels and a higher risk of toxicity. It is important for the client to follow this dietary instruction to ensure the safe and effective use of cyclosporine.
5. Glimepiride (Amaryl) is prescribed for a client with diabetes mellitus. A healthcare provider reinforces instructions for the client and advises them to avoid which of the following while taking this medication?
- A. Alcohol
- B. Organ meats
- C. Whole-grain cereals
- D. Carbonated beverages
Correct answer: A
Rationale: Alcohol should be avoided when taking glimepiride (Amaryl) because it can cause a disulfiram-like reaction and enhance the hypoglycemic effects of the medication. Consuming alcohol with glimepiride can lead to symptoms such as flushing, palpitations, nausea, and vomiting. Therefore, it is crucial for individuals on glimepiride therapy to steer clear of alcohol to prevent adverse reactions and maintain optimal medication efficacy.
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