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 client is prescribed metronidazole (Flagyl) for a trichomoniasis infection. Which of the following should the nurse include in the teaching plan?
- A. Avoid consuming alcohol while taking this medication.
- B. Take the medication with food.
- C. Increase fluid intake to prevent kidney stones.
- D. Report any gastrointestinal upset to the healthcare provider.
Correct answer: A
Rationale: The correct answer is A. Metronidazole (Flagyl) can cause a disulfiram-like reaction when taken with alcohol, resulting in severe nausea, vomiting, and headache. Therefore, the client should be advised to avoid alcohol while taking this medication to prevent adverse effects. Avoiding alcohol is crucial to prevent these reactions and ensure the effectiveness of the treatment. The other options are not directly related to the specific medication or the condition being treated.
3. A client is receiving meperidine (Demerol) for pain management. Which assessment finding requires immediate action?
- A. Constipation
- B. Drowsiness
- C. Respiratory rate of 10 breaths per minute
- D. Nausea
Correct answer: C
Rationale: A respiratory rate of 10 breaths per minute indicates respiratory depression, a severe side effect of meperidine (Demerol) that necessitates immediate intervention to prevent further complications. Constipation, drowsiness, and nausea are common but less urgent side effects that do not pose an immediate life-threatening risk. Respiratory depression can lead to respiratory arrest and must be addressed promptly to ensure the client's safety and well-being.
4. A client is being taught about the use of nitroglycerin (Nitrostat) for angina. Which statement by the client indicates a need for further teaching?
- A. I will sit or lie down when I take the medication.
- B. I can take up to three tablets, 5 minutes apart, if needed.
- C. I will call 911 if my chest pain is not relieved after taking three tablets.
- D. I will keep the medication in its original dark container.
Correct answer: B
Rationale: The correct administration of nitroglycerin for angina is to take up to three tablets, 5 minutes apart. If the chest pain persists after the third tablet, emergency medical services should be called. Taking more than three tablets or reducing the time interval between doses may lead to hypotension and indicates a need for further teaching.
5. A client with a history of chronic heart failure is prescribed spironolactone (Aldactone). Which of the following statements indicates that the client understands the medication teaching?
- A. I will avoid potassium-rich foods.
- B. I will not use a salt substitute.
- C. I will monitor my weight daily.
- D. I will increase my fluid intake as prescribed.
Correct answer: A
Rationale: The correct statement is 'I will avoid potassium-rich foods.' Spironolactone (Aldactone) is a potassium-sparing diuretic, which can lead to hyperkalemia if potassium intake is not regulated. Therefore, avoiding potassium-rich foods is crucial to prevent this complication. Using a salt substitute can also increase potassium levels. Monitoring weight daily is essential in heart failure management, but it is not specific to spironolactone. Increasing fluid intake as prescribed is generally recommended for heart failure management but is not directly related to spironolactone use.
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