Exhibit 4-65. Heart rate greater than specified criteria Warm-up (12 through 4 9 years)
If the heart rate is greater than 85 percent PMHR (90% PMHR for 12 through 18
years) during Warm-up determine if the SP is OK and able to continue. Monitor the
SP closely throughout this stage and decrease the exercise protocol before starting
Stage 1. When the data are captured at the end of the Warm-up, the ISIS system will
display a message: ‘Heart rate is greater than 85 percent PMHR (90%PMHR). If SP is
OK, continue with the test. If not, go to Recovery.’ Click OK. Decrease the exercise protocol and monitor the SP closely during the remainder of the
treadmill test.