DOI: 10.1373/clinchem.2011.168393

Summary:

A 90-year-old man was admitted to the Emergency Department with severe congestive heart failure and kidney failure. His medical history included successful surgery for prostatic carcinoma, aortocoronary bypass surgery, and cardiac pacemaker implantation. The patient was regularly taking digoxin, enalapril, aspirin, transdermal nitrate, and furosemide.