HESI RN
HESI Pharmacology Practice Exam
1. The healthcare provider should anticipate that the most likely medication to be prescribed prophylactically for a child with spina bifida (myelomeningocele) who has a neurogenic bladder would be:
- A. Prednisone
- B. Sulfisoxazole
- C. Furosemide (Lasix)
- D. Intravenous immune globulin (IVIG)
Correct answer: B
Rationale: Children with spina bifida, especially those with a neurogenic bladder, are at an increased risk of urinary tract infections. Sulfisoxazole, an antibiotic, is commonly prescribed prophylactically to prevent UTIs in this population. Prednisone (Choice A) is a corticosteroid and is not typically used for prophylaxis in this scenario. Furosemide (Lasix) (Choice C) is a diuretic used to treat fluid retention and hypertension, not for preventing UTIs. Intravenous immune globulin (IVIG) (Choice D) is used to boost the immune system, not for UTI prophylaxis in this case.
2. Prednisone is prescribed for a client with diabetes mellitus who is taking Humulin neutral protamine Hagedorn (NPH) insulin daily. Which of the following prescription changes does the nurse anticipate during therapy with prednisone?
- A. An additional dose of prednisone daily
- B. A decreased amount of daily Humulin NPH insulin
- C. An increased amount of daily Humulin NPH insulin
- D. The addition of an oral hypoglycemic medication daily
Correct answer: C
Rationale: When prednisone is prescribed for a client with diabetes mellitus who is taking Humulin NPH insulin daily, the nurse should anticipate an increased amount of daily Humulin NPH insulin. Prednisone, a glucocorticoid, can elevate blood glucose levels, requiring an increase in insulin dosage to maintain optimal blood sugar control.
3. Desmopressin acetate (DDAVP) is prescribed for the treatment of diabetes insipidus. The nurse monitors the client after medication administration for which therapeutic response?
- A. Decreased urinary output
- B. Decreased blood pressure
- C. Decreased peripheral edema
- D. Decreased blood glucose level
Correct answer: A
Rationale: Desmopressin promotes renal conservation of water by increasing the permeability of kidney collecting ducts to water, resulting in decreased urinary output. Therefore, the therapeutic response expected after administering desmopressin for diabetes insipidus is a reduction in urinary output.
4. A nurse is monitoring a client receiving lithium carbonate for bipolar disorder. Which finding should the nurse report immediately to the healthcare provider?
- A. Increased thirst
- B. Fine hand tremors
- C. Frequent urination
- D. Persistent vomiting
Correct answer: D
Rationale: Persistent vomiting can be a sign of lithium toxicity, which requires immediate medical attention. Increased thirst, fine hand tremors, and frequent urination are common side effects of lithium.
5. A client is taking phenytoin (Dilantin) for seizure control, and a sample for a serum drug level is drawn. Which of the following indicates a therapeutic serum drug range?
- A. 5 to 10 mcg/mL
- B. 10 to 20 mcg/mL
- C. 20 to 30 mcg/mL
- D. 30 to 40 mcg/mL
Correct answer: B
Rationale: The correct therapeutic serum drug level range for phenytoin (Dilantin) is 10 to 20 mcg/mL. This range is considered optimal for seizure control while minimizing the risk of toxicity. Monitoring drug levels helps ensure that the client is within the therapeutic range for effective treatment.
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