HESI RN
HESI Pharmacology Practice Exam
1. Before initiating a client with tuberculosis on anti-tuberculosis therapy with isoniazid (INH), a nurse ensures that which of the following baseline study has been completed?
- A. Electrolyte levels
- B. Coagulation times
- C. Liver enzyme levels
- D. Serum creatinine level
Correct answer: C
Rationale: Before starting INH therapy for tuberculosis, it is essential to assess liver enzyme levels as INH can cause hepatotoxicity. Monitoring liver enzyme levels before and during the initial 3 months of therapy is crucial to detect any liver damage early and prevent further complications. Choice A, electrolyte levels, are not directly impacted by INH therapy. Choice B, coagulation times, are not routinely monitored before starting INH therapy. Choice D, serum creatinine level, is not specifically required as a baseline study before initiating INH therapy for tuberculosis.
2. A healthcare provider is preparing to administer a prescribed dose of digoxin (Lanoxin) to a client. Before administering the medication, the healthcare provider should:
- A. Measure the client's blood pressure.
- B. Check the client's heart rate.
- C. Assess the client's respiratory rate.
- D. Check the client's oxygen saturation level.
Correct answer: B
Rationale: Before administering digoxin (Lanoxin), the healthcare provider should check the client's heart rate. Monitoring the heart rate is crucial because if it is below 60 beats per minute, the medication should be withheld, and the healthcare provider must be informed. While blood pressure, respiratory rate, and oxygen saturation are essential assessments, they are not the primary focus before administering digoxin.
3. A client is being monitored while receiving bethanechol chloride (Urecholine) for urinary retention. Which of the following indicates a therapeutic effect of this medication?
- A. Increased heart rate
- B. Increased peristalsis
- C. Passage of flatus
- D. Urinary output of 50 mL per hour
Correct answer: D
Rationale: Bethanechol chloride (Urecholine) is administered to stimulate the bladder and treat urinary retention. The therapeutic effect is indicated by an increased urinary output, as it demonstrates the medication's ability to prompt the bladder to empty. Increased heart rate and passage of flatus are unrelated to the therapeutic effects of bethanechol. Although bethanechol can increase peristalsis, the primary therapeutic goal is to address urinary retention.
4. 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.
5. A client is receiving furosemide (Lasix) and is being discharged. What should the nurse include in the teaching plan?
- A. Consume potassium-rich foods.
- B. Take the medication in the morning.
- C. Change positions slowly to prevent dizziness.
- D. Maintain an adequate fluid intake.
Correct answer: C
Rationale: The correct answer is to instruct the client to change positions slowly to prevent dizziness. Furosemide (Lasix) is a diuretic that can lead to orthostatic hypotension, causing dizziness. Consuming potassium-rich foods is essential to prevent hypokalemia when taking furosemide. Taking the medication in the morning helps reduce the need for frequent urination at night. Encouraging the client to maintain an adequate fluid intake is crucial to prevent dehydration while on this medication.
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