Pharmacology HESI 2023

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.

Correct Answer: C

Rationale: The correct instruction for a client prescribed methotrexate is to avoid sunlight while taking this medication. Methotrexate can increase sensitivity to sunlight, leading to skin reactions, so clients should limit sun exposure and use protective measures like sunscreen and clothing coverage to prevent adverse effects.

Correct Answer: A

Rationale: When a client with chronic kidney disease is prescribed ferric citrate, the nurse should monitor for constipation as a potential side effect. Ferric citrate can lead to constipation due to its effects on the gastrointestinal system, causing a decrease in bowel movements. It is essential for the nurse to assess and manage constipation promptly to prevent complications and ensure the client's comfort and well-being. Monitoring bowel movements, providing adequate hydration, and recommending dietary interventions can help alleviate constipation in clients taking ferric citrate.

Correct Answer: B

Rationale: Administering an oral laxative to a patient with abdominal pain of unknown origin is contraindicated because it could be a sign of a more serious underlying condition that needs immediate medical evaluation. Giving a laxative in such a situation without proper diagnosis could potentially worsen the patient's condition or delay appropriate treatment.

Correct Answer: A

Rationale: Furosemide is a loop diuretic that inhibits the reabsorption of sodium and chloride in the kidneys, leading to increased potassium excretion and potentially causing hypokalemia. Hypokalemia can lead to cardiac irregularities, making it crucial for the practical nurse to monitor the client for this electrolyte imbalance.