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. 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.
3. A client with amyotrophic lateral sclerosis (ALS) has been taking riluzole for two weeks. The nurse notes that the client remains weak with observable muscle atrophy. What action should the nurse take?
- A. Explain that the medication may take time to show improvement in symptoms
- B. Withhold the medication and notify the healthcare provider
- C. Advise the client to undergo liver function tests
- D. Document the assessment findings in the electronic health record
Correct answer: D
Rationale: In this scenario, the nurse's priority is to document the assessment findings in the electronic health record. This action is crucial for maintaining an accurate record of the client's health status and can provide valuable information for the healthcare team. While it is important to monitor the client's response to riluzole, explaining that the medication may take time to show improvement (Choice A) would be more appropriate if the client was expecting immediate results. Withholding the medication and notifying the healthcare provider (Choice B) should not be the initial action without further assessment or guidance. Advising the client to undergo liver function tests (Choice C) is not directly related to the current situation of weakness and muscle atrophy.
4. A client admitted with shortness of breath and palpitations currently takes an antiarrhythmic medication, dronedarone. Which action should the nurse take to prevent arrhythmias?
- A. Measure orthostatic blood pressure
- B. Obtain a 12-lead ECG reading daily
- C. Assess the client's apical pulse daily
- D. Provide continuous ECG monitoring
Correct answer: D
Rationale: The correct action to prevent arrhythmias in a client taking an antiarrhythmic medication like dronedarone is to provide continuous ECG monitoring. This is essential because antiarrhythmic drugs can sometimes cause pro-arrhythmic effects, which may lead to dangerous heart rhythm disturbances. Continuous ECG monitoring allows for real-time detection of any abnormal rhythms, enabling prompt intervention. Measuring orthostatic blood pressure, obtaining a 12-lead ECG reading daily, and assessing the client's apical pulse daily are important assessments in general patient care but may not specifically prevent arrhythmias in this scenario.
5. What is the primary nursing intervention that the practical nurse should perform before administering ampicillin to a client diagnosed with a urinary tract infection?
- A. Obtain a clean-catch urine specimen.
- B. Assess the urine pH for acidity.
- C. Insert an indwelling catheter.
- D. Assess for complaints of dysuria.
Correct answer: A
Rationale: The correct answer is to obtain a clean-catch urine specimen. Before administering ampicillin to a client with a urinary tract infection, it is crucial to collect a urine specimen to determine the causative organism and evaluate the effectiveness of pharmacological therapy. Assessing the urine pH for acidity (choice B) is not the primary intervention needed before administering ampicillin. Inserting an indwelling catheter (choice C) is invasive and not necessary unless indicated for specific reasons. Assessing for complaints of dysuria (choice D) is important but does not take precedence over obtaining a urine specimen for proper diagnosis and treatment.
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