Cardiac Glycosides

(From Williams ME, Rosa RM, Silva P, et al. Impairment of extrarenal potassium disposal by alpha-adrenergic stimulation. N Engl J Med. 1984;311[3]:145-149, with permission.)

Plasma potassium (K+) concentrations during the infusion of potassium chloride (KCl) increase more in patients also receiving phenylephrine.