In brief:The authors examined the effects of variations in lead selection and time of monitoring during recovery on the predictive value and sensitivity of exercise testing. Eighty-six patients received a standard Bruce protocol exercise test and follow-up angiography. The results showed that 12-lead monitoring for at least six minutes of recovery had more sensitivity for diagnosing coronary artery disease, and the greater the ST-segment depression, the greater the predictive value of the test.