HESI LPN
HESI Pharmacology Exam Test Bank
1. A client with type 2 diabetes is prescribed metformin. What instruction should the practical nurse (PN) include in the client's teaching plan?
- A. Take the medication with meals to decrease gastrointestinal upset.
- B. Take the medication with a full glass of water.
- C. Avoid alcohol while taking the medication.
- D. Take the medication with meals to increase absorption.
Correct answer: B
Rationale: The correct instruction for a client prescribed metformin is to take the medication with a full glass of water. This helps ensure proper ingestion and absorption of the medication. While taking metformin with meals can help reduce gastrointestinal side effects, the primary focus should be on adequate hydration and absorption by taking it with water. Avoiding alcohol while taking metformin is also important as alcohol can increase the risk of lactic acidosis when combined with metformin. Taking the medication with meals to increase absorption is incorrect as metformin should be taken with food to reduce gastrointestinal upset, not to increase absorption.
2. A client is receiving metronidazole for Clostridium difficile pseudomembranous colitis. Which information should the nurse include in this client's medication teaching plan?
- A. Drink adequate water daily
- B. Take with food
- C. Avoid alcohol consumption
- D. Store medication in the refrigerator
Correct answer: C
Rationale: The correct information to include in the medication teaching plan for a client receiving metronidazole for Clostridium difficile pseudomembranous colitis is to avoid alcohol consumption. Metronidazole can cause a disulfiram-like reaction when combined with alcohol, leading to symptoms such as nausea, vomiting, flushing, and headache. Therefore, it is crucial for the client to abstain from alcohol while taking this medication to prevent adverse effects and ensure treatment effectiveness. Choices A, B, and D are incorrect. Drinking adequate water daily is a general health recommendation but not specific to metronidazole use. Taking with food is not necessary for metronidazole, and in fact, it is recommended to be taken on an empty stomach for better absorption. Storing the medication in the refrigerator is also incorrect, as metronidazole should be stored at room temperature.
3. A client with a diagnosis of generalized anxiety disorder is prescribed buspirone. The nurse should include which instruction in the client's teaching plan?
- A. This medication may cause drowsiness; avoid driving.
- B. This medication may take several weeks to take effect.
- C. This medication can be taken on an as-needed basis.
- D. This medication should be taken with food.
Correct answer: B
Rationale: Buspirone may take several weeks to take effect, so clients should continue taking it as prescribed and not expect immediate relief.
4. The practical nurse administered 15 units of NPH insulin subcutaneously to a client before they consumed their breakfast at 7:30 AM. At what time is the client at an increased risk for a hypoglycemic reaction?
- A. 8:30 to 11:30 AM
- B. 3:30 to 7:30 PM
- C. 9:30 PM to midnight
- D. 1:00 to 5:00 AM
Correct answer: B
Rationale: NPH insulin, an intermediate-acting type, peaks approximately 8 to 12 hours after subcutaneous administration. Considering this, the client is most likely to experience a hypoglycemic reaction between 3:30 and 7:30 PM, making option B the correct answer. Choices A, C, and D are incorrect because they fall outside the peak time for a hypoglycemic reaction after administering NPH insulin.
5. When a client with hepatic encephalopathy is receiving lactulose, which parameter is essential to monitor for a response to the drug?
- A. Serum hepatic enzymes
- B. Fingerstick glucose
- C. Stool color and character
- D. Serum electrolytes and ammonia
Correct answer: D
Rationale: In hepatic encephalopathy, the goal of lactulose therapy is to reduce blood ammonia levels by promoting its excretion in the stool. Therefore, monitoring serum electrolytes and ammonia levels is crucial to assess the effectiveness of lactulose in lowering ammonia levels and improving the client's condition. Options A, B, and C are incorrect because serum hepatic enzymes, fingerstick glucose, and stool color/character are not directly related to monitoring the response to lactulose therapy in hepatic encephalopathy.
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