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 is prescribed phenytoin for the management of seizures. What instruction should the practical nurse provide to the client regarding this medication?
- A. Take the medication at the same time every day.
- B. Discontinue the medication if a rash develops.
- C. Avoid consuming dairy products.
- D. Monitor blood pressure regularly.
Correct answer: A
Rationale: The correct instruction the practical nurse should provide to the client regarding phenytoin is to take the medication at the same time every day. This consistency helps maintain a steady level of the medication in the bloodstream, which is crucial for effectively managing seizures. It is important for clients to adhere to their prescribed dosing schedule to optimize the therapeutic benefits of phenytoin. Choices B, C, and D are incorrect because discontinuing the medication without healthcare provider guidance can be dangerous, there is no specific interaction between phenytoin and dairy products, and monitoring blood pressure is not a primary concern with phenytoin therapy for seizures.
3. A client with rheumatoid arthritis is prescribed tofacitinib. What should the nurse include in the client's teaching plan?
- A. Avoid live vaccines while taking this medication.
- B. Take this medication with food to decrease gastrointestinal upset.
- C. Report any signs of infection to the healthcare provider.
- D. Avoid sunlight while taking this medication.
Correct answer: A
Rationale: Tofacitinib is an immunosuppressive medication used in rheumatoid arthritis. Patients taking tofacitinib should avoid live vaccines because the medication can weaken the immune system, making live vaccines potentially harmful. It is essential to educate the client on this to prevent any complications related to live vaccines during their treatment.
4. A client has been taking simvastatin for 3 days and calls the nurse at the clinic to report extreme muscle tenderness and pain. Which is the most appropriate action?
- A. Notify the health care provider.
- B. Review the medication with the client.
- C. Advise the client to avoid grapefruit juice.
- D. Remind the client to limit physical activity until evaluated by the health care provider.
Correct answer: A
Rationale: Extreme muscle tenderness and pain in a client taking simvastatin could indicate rhabdomyolysis, a serious condition. Promptly notifying the health care provider is crucial to evaluate and manage this potential medical emergency. Reviewing the medication with the client may not address the urgency of the situation. Advising the client to avoid grapefruit juice is not directly related to the client's current symptoms. Reminding the client to limit physical activity until evaluated by the health care provider is not appropriate as the client's symptoms should be assessed by a professional first.
5. A client with rheumatoid arthritis is prescribed leflunomide. What instruction should the nurse include in the client's teaching plan?
- A. Avoid alcohol while taking this medication.
- B. Take this medication with food to decrease gastrointestinal upset.
- C. Avoid sunlight while taking this medication.
- D. Report any signs of infection to the healthcare provider.
Correct answer: A
Rationale: Leflunomide can increase sensitivity to sunlight. While it is important to avoid excessive sun exposure, the critical instruction for the client is to avoid alcohol while taking this medication. Alcohol can potentiate the hepatotoxic effects of leflunomide, making it crucial for the client to abstain from alcohol consumption to prevent liver damage.
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