cardiopulmonary exercise test

car·di·o·pul·mo·nar·y ex·er·cise test

(CPX) (kahr'dē-ō-pul'mŏ-nār-ē eks'ĕr-sīz test) Assessment of heart disease involving patient's use of a treadmill or cycling machine whileattached to an electrocardiographic machine; measures oxygen use and evaluates electrical cardiac patterns.