Preparing the Patient
ST80i Stress Test System Instructions for Use 3-27
Pre Exercise Phase
The Pre Exercise phase is used to start the patient on the treadmill or the ergometer. The phase
is preset to run for 3 minutes with the speed setting on 01:00 and the elevation is set at 0%.
Figure 3-9 Treadmill Speed and Grade
Note that the Pre Exercise time is separate from the Exercise time.
Before the Pre Exercise phase begins with the patient on the treadmill, the following steps are
recommended:
Baseline ECG (resting or standing)
Baseline Blood Pressure - manual or NIBP
Baseline Sp02
Static ECG Resting Interpretation
Once the waveforms are satisfactory, you are ready to acquire a baseline (resting or standing)
ECG. ST80i allows you to acquire and print a 12-lead resting ECG with or without
interpretation when the patient is supine or when using the Mason-Likar lead placement. This
data will appear as part of the Final ECG Report.
ST80i will provide resting ECG interpretation for all available lead configurations, using the
latest Philips DXL algorithm at resting ECG for traditional limb lead placement as well as
Mason Likar.
WARNING To get the most accurate interpretation during resting ECG, use traditional limb lead
placement.
When the algorithm finds excessive artifact or AC noise, it will give a related warning/error
string. The string will be printed on the report and be saved when saving the report. The
algorithm also reports wrong lead placement.
See “Filtering” on page 3-25 regarding artifact or AC noise.
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