Essentials of Pharmacology for Health Professions 7th Edition by Ruth Woodrow,Bruce Colbert ,David Smith

Exercise 25

Isaac Doniego, a 77-year-old widower with heart failure, has been treated successfully with a combination of ACE inhibitors and diuretics. However, his symptoms worsen and became life threatening despite pharmacologic treatment, so he is hospitalized for evaluation and stabilization on a cardiac glycoside. Isaac's physician alerts him that cardiac glycosides should be avoided if he has which of the following conditions
A) Hyperthyroidism
B) Hyperkalemia
C) Hypermagnesemia
D) Impaired renal function