HESI RN
RN HESI Pharmacology Exam 3 Questions
Extract:
Question 1 of 5
A client with nasal congestion receives a prescription for phenylephrine 10 mg PO every 4 hours. Which client condition should the nurse report to the healthcare provider before administering the medication?
Correct Answer: A
Rationale: Phenylephrine, a vasoconstrictor, can elevate blood pressure, exacerbating hypertension and risking complications. Reporting this condition ensures safe use or alternative treatments. Bronchitis, edema, or diarrhea are less critical contraindications.
Question 2 of 5
The nurse is assessing the eyes of a client who just received mydriatic eye drops. Which physiological function of the eye will not respond during the therapeutic period after administration of the eye drops?
Correct Answer: A
Rationale: Mydriatic drops dilate pupils, inhibiting constriction by blocking parasympathetic response. Refraction, convergence, and accommodation (though impaired) are less directly affected during the therapeutic period.
Question 3 of 5
The healthcare provider prescribes magnesium sulfate 300 mg/hour IV. The IV bag contains magnesium sulfate 4 grams in dextrose 5% in water (D5W) 500 mL. How many mL/hour should the nurse set the infusion pump? (Enter numerical value only. If rounding is required, round to the nearest tenth.)
Correct Answer: 37.5
Rationale: Convert 4 grams to 4000 mg. Infusion rate = (300 mg/hr) ÷ (4000 mg/500 mL) = 300 × 500 ÷ 4000 = 37.5 mL/hr. The pump should be set to 37.5 mL/hr.
Question 4 of 5
The nurse is caring for a client who takes methotrexate for rheumatoid arthritis and receives a prescription for adalimumab. Which instructions should the nurse provide the client?
Correct Answer: D
Rationale: Adalimumab, an immunosuppressant, increases infection risk. Avoiding crowds and sick individuals minimizes exposure, protecting the client’s compromised immune system. Chest x-rays, vaccinations, or eye exams are not specifically required for adalimumab initiation.
Question 5 of 5
A client receives a prescription for ciprofloxacin 400 mg intravenously (IV) every 12 hours to be infused over an hour. The IV bag contains ciprofloxacin 400 mg in dextrose 5% in water (D5W) 200 mL. The nurse should program the infusion pump to deliver how many mL/hr? (Enter numerical value only.)
Correct Answer: 200
Rationale: Infusion rate = 200 mL ÷ 1 hour = 200 mL/hr. The pump should be set to deliver 200 mL/hr to infuse the entire dose over one hour.