4.6.2 Decreasing the Exercise Protocol
Exhibit 4-54. Decreasing the exercise protocol If the heart rate is greater than 60 percent of PMHR during Warm-up, the protocol
should be decreased for the remainder of the exam. Watch the heart during Warm-up.
You need to make a decision to change the protocol by 1 minute 30 seconds into
Warm-up to allow time to initiate the changes. Click the ‘Change Protocol’ button. A box with change protocol options will be
displayed. Click the down arrow to decrease the protocol. Click ‘Apply.’ The ISIS
system will give an auditory message:“When this stage changes, change treadmill controller to the next lower protocol.”