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 methotrexate. The nurse should monitor for which common side effect of this medication?
- A. Liver toxicity
- B. Skin rash
- C. Hair loss
- D. Abdominal pain
Correct answer: A
Rationale: The correct answer is A: Liver toxicity. Methotrexate is known to cause liver toxicity, making regular monitoring of liver function essential. Monitoring liver function tests helps detect any signs of liver damage early, allowing for appropriate interventions to be implemented promptly.
3. A client with chronic kidney disease is prescribed lanthanum carbonate. The nurse should monitor for which potential side effect?
- A. Hypercalcemia
- B. Hypocalcemia
- C. Hyperkalemia
- D. Hypokalemia
Correct answer: A
Rationale: Lanthanum carbonate is prescribed in chronic kidney disease to bind dietary phosphorus in the gastrointestinal tract. This action can lead to decreased phosphorus absorption and potential hypercalcemia due to the increased serum calcium levels. Therefore, the nurse should monitor the client for signs and symptoms of hypercalcemia, such as confusion, fatigue, and muscle weakness. Choices B, C, and D are incorrect as lanthanum carbonate's mechanism of action does not lead to hypocalcemia, hyperkalemia, or hypokalemia.
4. A client with hypertension is prescribed valsartan. The nurse should monitor the client for which potential side effect?
- A. Hypotension
- B. Tachycardia
- C. Hyperglycemia
- D. Hyponatremia
Correct answer: A
Rationale: The correct answer is A: Hypotension. Valsartan is an angiotensin II receptor blocker that can cause hypotension as a side effect by dilating blood vessels. Monitoring blood pressure is crucial to prevent complications related to low blood pressure. Choice B, Tachycardia, is incorrect because valsartan typically does not cause an increase in heart rate. Choice C, Hyperglycemia, is not a common side effect of valsartan. Choice D, Hyponatremia, is also unlikely with valsartan use.
5. A client has been prescribed losartan. Which change in data indicates to the practical nurse (PN) that the desired effect of this medication has been achieved?
- A. Dependent edema reduced from +3 to +1.
- B. Serum HDL increased from 35 to 55 mg/dL.
- C. Pulse rate reduced from 150 to 90 beats/min.
- D. Blood pressure reduced from 160/90 to 130/80 mm Hg.
Correct answer: D
Rationale: The correct answer is D. Losartan is prescribed for the treatment of hypertension. The desired effect of losartan is to reduce blood pressure. Therefore, a reduction in blood pressure from 160/90 to 130/80 mm Hg indicates that the desired effect of the medication has been achieved. Choices A, B, and C are not specific effects of losartan and do not directly relate to the expected outcomes of this medication. Dependent edema, serum HDL levels, and pulse rate are not typically influenced by losartan, making choices A, B, and C incorrect.
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