HESI RN
HESI Pharmacology Quizlet
1. Isosorbide mononitrate (Imdur) is prescribed for a client with angina pectoris. The client tells the nurse that the medication is causing a chronic headache. The nurse appropriately suggests that the client:
- A. Cut the dose in half.
- B. Discontinue the medication.
- C. Take the medication with food.
- D. Contact the healthcare provider (HCP).
Correct answer: C
Rationale: Isosorbide mononitrate can cause headaches, which usually disappear during continued therapy. Taking the medication with food or meals can help alleviate the headache. It is important to recommend this approach before considering dose adjustments or discontinuation of the medication. Contacting the healthcare provider would be necessary if the headache persists despite taking the medication with food.
2. The healthcare provider is reviewing the history and physical examination of a client who will be receiving asparaginase (Elspar), an antineoplastic agent. The healthcare provider consults with the registered nurse regarding the administration of the medication if which of the following is documented in the client's history?
- A. Pancreatitis
- B. Diabetes mellitus
- C. Myocardial infarction
- D. Chronic obstructive pulmonary disease
Correct answer: A
Rationale: Asparaginase is contraindicated in clients with a history of pancreatitis due to the risk of impairing pancreatic function and causing complications. Therefore, the healthcare provider should consult with the registered nurse to assess the client's history of pancreatitis before administering asparaginase.
3. A client with portosystemic encephalopathy is receiving oral lactulose (Chronulac) daily. The nurse assesses which of the following to determine medication effectiveness?
- A. Lung sounds
- B. Blood pressure
- C. Blood ammonia level
- D. Serum potassium level
Correct answer: C
Rationale: In portosystemic encephalopathy, the liver's ability to detoxify ammonia is impaired, leading to elevated blood ammonia levels, which can cause neurological symptoms such as encephalopathy. Lactulose is given to reduce ammonia levels by promoting its excretion through the bowel. Therefore, assessing the blood ammonia level is crucial to determine the effectiveness of lactulose therapy in managing portosystemic encephalopathy.
4. A client who received a kidney transplant is taking azathioprine (Imuran), and the nurse provides instructions about the medication. Which statement by the client indicates a need for further instructions?
- A. I need to watch for signs of infection.
- B. I need to discontinue the medication after 14 days of use.
- C. I can take the medication with meals to minimize nausea.
- D. I need to call the health care provider (HCP) if more than one dose is missed.
Correct answer: B
Rationale: Azathioprine is an immunosuppressant taken for life. Discontinuing the medication after 14 days is incorrect.
5. The camp nurse asks the children preparing to swim in the lake if they have applied sunscreen. The nurse reminds the children that chemical sunscreens are most effective when applied:
- A. Immediately before swimming
- B. 15 minutes before exposure to the sun
- C. Immediately before exposure to the sun
- D. At least 30 minutes before exposure to the sun
Correct answer: D
Rationale: Chemical sunscreens are most effective when applied at least 30 minutes before exposure to the sun to allow them to penetrate the skin and provide optimal protection. Applying sunscreen immediately before swimming (Choice A) or immediately before exposure to the sun (Choice C) may not provide sufficient time for the sunscreen to be absorbed and offer proper protection. Applying sunscreen 15 minutes before sun exposure (Choice B) is also not ideal as it may not allow enough time for the sunscreen to work effectively. Therefore, the correct answer is to apply chemical sunscreen at least 30 minutes before exposure to the sun to ensure it can be absorbed and offer the intended protection. It is important to reapply sunscreen after swimming or sweating to maintain its effectiveness.
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