Potassium in heart failure.
D000368:Aged; D004232:Diuretics / Q000009:adverse effects*; D005260:Female; D006333:Heart Failure / Q000188:drug therapy*; D006801:Humans; D007008:Hypokalemia / Q000139:chemically induced / Q000517:prevention & control*; D008297:Male; D011188:Potassium / Q000627:therapeutic use*
D004232:Diuretics; D011188:Potassium