If the SP looks OK and does not ask to stop, continue with the test. Continue to
monitor very closely for signs of exhaustion. If the SP is exhausted and wants or needs to stop, press Go to Recovery on the ISIS
screen. If the %HR is above 80% when the data are captured near the end of Stage 1, a
message will be displayed:“HR greater than 80 % PMHR. If SP is OK, continue with the test.” Follow the procedures noted above to determine if the SP can continue. If Go to
Recovery is pressed on the ISIS screen, the system will then highlight the Recovery
Stage for the current protocol. The system will give an auditory message to remind the technologist to change the
setting on the treadmill controller. The message will say:“Change treadmill controller to Recovery Stage for current protocol.” Press NEXT STAGE on the treadmill controller to get to Recovery for the current
protocol. Watch the markings on the controller carefully and do not go past the
desired setting. Press NEXT STAGE only once for this change.3.12. 5 Monitoring the Heart Rate during Stage 2
The protocol should not be increased or decreased during Stage 2. If the Change
Protocol button is selected, the system will display this message: “The protocol cannot
be changed after Stage 1.” Throughout Stage 2, monitor the %HRmax scale on ISIS screen. If % HR max is >85
percent PMHR (>90 percent for 12- through 18-year-olds) a message will be
displayed “HR greater than 85%/90% PMHR. If SP is OK, continue with the test.” Determine if SP is OK by observing the SP’s color, breathing and gait for signs of
severe fatigue and ask the SP how he or she is doing with a question such as: “How
are you doing? We have approximately 4 minutes left in the test. Do you think you
can continue?” If the SP looks OK and does not ask to stop, continue with the test. Continue to
monitor very closely for signs of exhaustion. If the SP is exhausted and wants or needs to stop, press Go to Recovery on the ISIS
screen. The system will highlight the Recovery Stage for the current protocol.