HESI RN
Wgu HESI RN Pharmacology 1 Questions
Extract:
Question 1 of 5
The nurse is providing medication teaching to a client with bipolar disorder who receives a prescription for lithium carbonate. Which instruction should the nurse emphasize with the client?
Correct Answer: C
Rationale: Adequate fluid intake (1500-3000 mL/day) prevents dehydration, which can elevate lithium levels and risk toxicity. Taking with food, reviewing fliers, or reporting weight changes are less critical to lithium safety.
Question 2 of 5
A client who is newly diagnosed with diabetes insipidus (DI) is receiving a synthetic vasopressin intravenously. Which side effect of vasopressin reported by the client should the nurse report to the healthcare provider?
Correct Answer: A
Rationale: Worsening headache may indicate water intoxication or hyponatremia from excessive vasopressin-induced water retention, requiring immediate provider notification. Polyuria, low specific gravity, and polydipsia are DI symptoms, not vasopressin side effects.
Question 3 of 5
Which intervention is most important for the nurse to implement for a client with type 2 diabetes mellitus (DM) who is receiving insulin lispro?
Correct Answer: B
Rationale: Insulin lispro, rapid-acting, peaks 1-2 hours post-dose, requiring meals shortly after administration to prevent hypoglycemia. Synchronizing meal timing with insulin is critical. Hypoglycemia checks, glucose sources, and monitoring are supportive but secondary.
Question 4 of 5
A client who is taking an oral contraceptive receives a new prescription for erythromycin. Which instruction should the nurse provide to the client?
Correct Answer: D
Rationale: Erythromycin may reduce oral contraceptive efficacy by altering metabolism. Using additional contraception (e.g., condoms) prevents unintended pregnancy. Stopping the contraceptive, spacing doses, or avoiding sunlight are not necessary.
Question 5 of 5
The nurse is administering sodium polystyrene sulfonate to a client in acute kidney injury (AKI). Which laboratory finding indicates that the medication has been effective? Reference Range: Glucose [74 to 106 mg/dL (4.1 to 5.9 mmol/L)] Hemoglobin [14 to 18 g/dL (140 to 180 g/L)] Potassium [3.5 to 5 mEq/L (3.5 to 5 mmol/L)] Ammonia [10 to 80 μg/dL (6 to 47 μmol/L)]
Correct Answer: C
Rationale: Sodium polystyrene sulfonate lowers potassium by exchanging sodium for potassium in the gut. A potassium level of 3.8 mEq/L (normal range) indicates effective hyperkalemia treatment in AKI. Ammonia, hemoglobin, and glucose are unaffected by this medication.