HESI RN
Pharmacology HESI
1. Which statement by the client indicates a need for further teaching about the use of metoprolol (Lopressor)?
- A. I will not stop taking the medication abruptly.
- B. I will take my pulse before taking the medication.
- C. I will take the medication with food.
- D. I will take the medication at bedtime.
Correct answer: D
Rationale: The correct answer is D because taking metoprolol (Lopressor) at bedtime is not specifically recommended. Metoprolol should be taken with food to enhance absorption. It is crucial for the client not to stop taking the medication abruptly to prevent rebound hypertension or other adverse effects. Additionally, monitoring the pulse before taking metoprolol is important for assessing its effect on heart rate.
2. A client who is taking hydrochlorothiazide (HydroDIURIL, HCTZ) has been started on triamterene (Dyrenium) as well. The client asks the nurse why both medications are required. The nurse formulates a response, based on the understanding that:
- A. Both are weak potassium-losing diuretics.
- B. The combination of these medications prevents renal toxicity.
- C. Hydrochlorothiazide is less expensive, so using a combination of diuretics is cost-effective.
- D. Triamterene is a potassium-sparing diuretic, whereas hydrochlorothiazide is a potassium-losing diuretic.
Correct answer: D
Rationale: The combination of triamterene and hydrochlorothiazide is used because triamterene is a potassium-sparing diuretic, which helps retain potassium, while hydrochlorothiazide is a potassium-losing diuretic, which promotes potassium excretion. This combination helps balance potassium levels in the body, preventing imbalances that can occur when using potassium-losing diuretics alone.
3. The nurse provides medication instructions to an older hypertensive client who is taking 20 mg of lisinopril (Prinivil, Zestril) orally daily. The nurse evaluates the need for further teaching when the client states which of the following?
- A. I can skip a dose once a week.
- B. I need to change my position slowly.
- C. I take the pill after breakfast each day.
- D. If I get a bad headache, I should call my doctor immediately.
Correct answer: A
Rationale: Lisinopril should be taken daily as prescribed and not skipped. Skipping doses can lead to ineffective treatment.
4. A client is prescribed warfarin (Coumadin) for atrial fibrillation. Which statement by the client indicates a need for further teaching?
- A. I will avoid foods high in vitamin K.
- B. I will take the medication at the same time each day.
- C. I will use an electric razor to shave.
- D. I will take aspirin if I have a headache.
Correct answer: D
Rationale: Clients taking warfarin (Coumadin) should avoid aspirin unless prescribed by their healthcare provider, as it can increase the risk of bleeding. The other statements are correct and do not indicate a need for further teaching. Taking aspirin along with warfarin can potentiate the anticoagulant effects of warfarin, leading to an increased risk of bleeding complications.
5. Mafenide acetate (Sulfamylon) is prescribed for a client with a burn injury. When applying the medication, the client complains of local discomfort and burning. Which of the following is the most appropriate nursing action?
- A. Notifying the registered nurse
- B. Discontinuing the medication
- C. Informing the client that this is normal
- D. Applying a thinner film than prescribed to the burn site
Correct answer: C
Rationale: The correct action is to inform the client that local discomfort and burning are normal reactions to Mafenide acetate. This medication is used to treat burns by reducing bacteria in avascular tissues. Discontinuing the medication or applying a thinner film than prescribed is not necessary or recommended in this situation.
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