HESI LPN
Pharmacology HESI 2023
1. A 6-month-old infant is prescribed digoxin for the treatment of congestive heart failure. Which observation by the practical nurse (PN) warrants immediate intervention for signs of digoxin toxicity?
- A. Apical heart rate of 60 beats/min
- B. Sweating across the forehead
- C. Poor sucking effort
- D. Respiratory rate of 30 breaths/min
Correct answer: A
Rationale: A heart rate of 60 beats/min for a 6-month-old infant warrants immediate intervention as it falls below the normal range. The normal heart rate for a 6-month-old is 80 to 150 beats/min when awake, and a rate of 70 beats/min while sleeping is considered within normal limits. Bradycardia (heart rate <60 beats/min) in infants can be a sign of digoxin toxicity, necessitating prompt evaluation and intervention to prevent adverse effects. Sweating across the forehead (Choice B) is a non-specific symptom and may not directly indicate digoxin toxicity. Poor sucking effort (Choice C) and a respiratory rate of 30 breaths/min (Choice D) are not typically associated with digoxin toxicity and do not require immediate intervention in the context of this question.
2. A client with rheumatoid arthritis is prescribed sulfasalazine. Which instruction should the nurse include in the client's teaching plan?
- A. Take this medication with meals.
- B. Avoid sunlight while taking this medication.
- C. Report any signs of infection to the healthcare provider.
- D. Take this medication on an empty stomach.
Correct answer: A
Rationale: The correct instruction to include in the client's teaching plan regarding sulfasalazine is to take the medication with meals. Taking sulfasalazine with food helps to minimize gastrointestinal upset, which is a common side effect of the medication. Choice B is incorrect because avoiding sunlight is not specifically related to sulfasalazine. Choice C is important but not directly related to the administration of sulfasalazine. Choice D is incorrect because sulfasalazine should be taken with meals to reduce gastrointestinal side effects.
3. A client with chronic kidney disease is prescribed sevelamer. The nurse should monitor for which potential side effect?
- A. Hypercalcemia
- B. Hypocalcemia
- C. Hyperkalemia
- D. Hypokalemia
Correct answer: B
Rationale: When a client with chronic kidney disease is prescribed sevelamer, the nurse should monitor for hypocalcemia. Sevelamer works by binding dietary phosphorus in the gastrointestinal tract, which can lead to decreased calcium absorption and potentially cause hypocalcemia.
4. The healthcare provider is assessing the effectiveness of the drug amiodarone. Which client statement best indicates that the drug has been effective?
- A. I have not had as many spells of angina.
- B. I have not had as much swelling in my ankles lately.
- C. My doctor told me my cholesterol levels were improving with each visit.
- D. I do not notice as many irregular heartbeats as before I started taking this medication.
Correct answer: D
Rationale: The correct answer is option D. The effectiveness of amiodarone is best assessed by a reduction in irregular heartbeats since it is primarily used to treat ventricular dysrhythmias. This drug's main purpose is to control irregular heart rhythms, so a decrease in irregular heartbeats indicates its effectiveness. Options A, B, and C are incorrect because amiodarone is not primarily used to address angina, ankle swelling, or cholesterol levels, so improvements in these areas do not directly reflect the drug's effectiveness.
5. A client is prescribed cyclobenzaprine for muscle spasms. The nurse should instruct the client to avoid which substance while taking this medication?
- A. Alcohol
- B. Caffeine
- C. Nicotine
- D. Dairy products
Correct answer: A
Rationale: The correct answer is A: Alcohol. When taking cyclobenzaprine, it is important to avoid alcohol as it can potentiate the central nervous system depressant effects of the medication. This interaction can lead to increased drowsiness, dizziness, and impaired coordination. Therefore, it is essential for the client to refrain from alcohol consumption while on cyclobenzaprine to prevent these adverse effects and ensure their safety. Choices B, C, and D are incorrect because caffeine, nicotine, and dairy products do not have significant interactions with cyclobenzaprine. While caffeine and nicotine may have stimulant effects that could theoretically counteract some of the sedative effects of cyclobenzaprine, they are not contraindicated. Dairy products, on the other hand, do not interact with cyclobenzaprine and can be consumed safely.
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