Serum magnesium levels
Question
Question 1
A nurse is caring for a patient who is diabetic and has been diagnosed with hypertension. An angiotensin-converting enzyme inhibitor, captopril, has been prescribed for her. Which of the following should the nurse assess before beginning drug therapy?
A) Serum calcium levels
B) Serum potassium levels
C) Blood glucose levels
D) Serum magnesium levels
Question 2
A normal maintenance dose for digoxin is 0.125 to 0.5 mg/day. In which of the following patients would the nurse most likely administer a lower-than-normal maintenance dose of digoxin?
A) A 25-year-old male with congestive heart failure and atrial fibrillation
B) A 32-year-old female with cardiomegaly
C) A 79-year-old male with cardiomegaly
D) A 42-year-old female with a third heart sound
Question 3
A nurse is the cardiac care unit is preparing to hang an intravenous dose of dofetilide (Tikosyn) for a patient who has just been admitted. What is the most likely goal of this intervention?
A) To treat sinus bradycardia accompanied by hypotension
B) To resolve the patient’s uncompensated heart failure
