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 who takes metformin for diabetes mellitus type 2 is nothing by mouth (NPO) for surgery. What pre-op prescription should the practical nurse (PN) anticipate for this client's glucose management?
- A. NPO except for metformin and regular snacks
- B. NPO except for oral antidiabetic agent
- C. Novolin-N insulin subcutaneously twice daily
- D. Regular insulin subcutaneously per sliding scale
Correct answer: D
Rationale: When a client taking metformin for diabetes mellitus type 2 is NPO for surgery, it is crucial to manage their glucose levels effectively. The best approach in this situation is to prescribe regular insulin subcutaneously according to a sliding scale based on the client's blood glucose levels. This method allows for precise adjustment of insulin doses to maintain blood glucose within the target range while the client is unable to take oral medications. Choices A and B are incorrect because metformin is typically held when a client is NPO, and oral antidiabetic agents may not provide sufficient glucose control. Choice C is incorrect as Novolin-N insulin given twice daily may not offer the flexibility needed for glucose management in a surgical setting where the client's intake is restricted.
3. A client is prescribed methylprednisolone for an allergic reaction. The nurse should monitor for which potential side effect of this medication?
- A. Nausea and vomiting
- B. Weight gain
- C. Insomnia
- D. Increased appetite
Correct answer: B
Rationale: When a client is prescribed methylprednisolone, a corticosteroid, the nurse should monitor for weight gain as a potential side effect. Corticosteroids like methylprednisolone can cause weight gain and fluid retention due to their impact on metabolism and sodium retention. Nausea and vomiting are less common side effects of methylprednisolone. Insomnia and increased appetite are not typically associated with methylprednisolone use.
4. The nurse is studying antacids that contain magnesium and calcium for the pharmacology exam. The student nurse remembers that these antacids should be used with caution in patients with which condition?
- A. Hypertension
- B. Renal failure
- C. Heart failure
- D. Peptic ulcer disease
Correct answer: B
Rationale: Magnesium and calcium can accumulate in patients with renal failure, leading to toxicity.
5. A client with diabetes mellitus type 2 is prescribed empagliflozin. The nurse should monitor for which potential adverse effect?
- A. Genital infections
- B. Hypoglycemia
- C. Hyperglycemia
- D. Nausea
Correct answer: A
Rationale: The correct answer is A: Genital infections. Empagliflozin, a medication commonly used to treat type 2 diabetes, is associated with an increased risk of genital infections. This is due to its mechanism of action, which involves promoting the excretion of glucose through urine, creating a more favorable environment for fungal or bacterial growth in the genital area. Choices B and C, hypoglycemia and hyperglycemia, are less likely adverse effects of empagliflozin. Empagliflozin actually carries a low risk of causing hypoglycemia since it works independently of insulin. Nausea (Choice D) is not a commonly reported adverse effect of empagliflozin, making it an incorrect choice in this scenario.
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