DOI: 10.1373/clinchem.2011.173138


A 51-year-old woman with a history of mild hypertension and mild hyperlipidemia had presented with a 2-h episode of substernal chest discomfort for the first time. She was receiving a statin but refused treatment for hypertension. She was an avid runner and had never had chest discomfort previously. The discomfort occurred at rest and radiated to her arms and her neck.