two-step exercise test

two-step ex·er·cise test

a test used mainly for coronary insufficiency; significant depression of RST in the electrocardiogram is considered abnormal and suggests coronary insufficiency.

two-step ex·er·cise test

(tū'step ek'sĕr-sīz test)
A test used mainly for coronary insufficiency; any significant depression of RS-T in the electrocardiogram is considered abnormal and suggests coronary insufficiency.