HESI RN
HESI Bsn 225 RN Pharmacology Questions
Extract:
Question 1 of 5
The nurse is administering SUBQ enoxaparin to a client following knee replacement surgery to prevent a deep vein thrombosis. Which laboratory result requires immediate action by the nurse?
Correct Answer: A
Rationale: A platelet count of 100,000/mm3 indicates thrombocytopenia, increasing bleeding risk with enoxaparin, requiring immediate action. Creatinine, BUN, and hematocrit are within normal ranges.
Question 2 of 5
The nurse is caring for a client with atrial fibrillation who receives a prescription for warfarin. The international normalized ratio (INR) is 2.8. Which action should the nurse take?
Correct Answer: C
Rationale: An INR of 2.8 is within the therapeutic range for atrial fibrillation, but monitoring for bleeding is critical as a routine precaution. Repeating the sample, giving the dose, or notifying the provider are less immediate.
Question 3 of 5
A client with chronic kidney disease (CKD) is receiving calcium acetate 667 mg PO. A decrease in which blood value indicates to the nurse that the medication is having the desired effect?
Correct Answer: B
Rationale: Calcium acetate lowers phosphate levels in CKD by binding dietary phosphate. A decreased phosphate level indicates effectiveness. pH, potassium, and calcium are not primary targets.
Question 4 of 5
A client receives a prescription for a secondary infusion of IV erythromycin 1 gram in 200 mL dextrose 5% in water (D5W) to be infused in 90 minutes. The nurse should program the infusion pump to deliver how many mL/hour? (Enter the numerical value only. If rounding is required, round to the nearest whole number.)
Correct Answer: 133
Rationale: Volume = 200 mL, Time = 90 minutes = 1.5 hours. Infusion rate = 200 mL / 1.5 hours = 133.33 mL/hr, rounded to 133 mL/hr.
Question 5 of 5
Ferrous sulfate elixir is prescribed for a client with iron deficiency anemia. Which instruction should the nurse provide this client about taking the liquid medication?
Correct Answer: A
Rationale: Using a straw prevents tooth staining from ferrous sulfate. Undiluted swallowing risks staining, antacids reduce absorption, and milk inhibits iron absorption due to calcium.