A 58-year-old female patient with congestive heart failure i…

A 58-year-old female patient with congestive heart failure is being treated with 40% oxygen and diuretics. Within 3 hours she has lost 1500 mL of urine and her pulse oximeter reading has improved from 84% to 93% saturation. Her electrocardiogram shows a heart rate of 110 beats/min with the new observation of premature ventricular contractions. Her recent serum electrolyte values show a potassium level of 3.1 mEq/L. What recommendation could be made in her care?