Welch Allyn CardioPerfect Workstation Exercise ECG Module - User Manual - Manual (Page 36)

CardioPerfect Workstation
Exercise ECG Module - User Manual
DIR 80012335 Ver. E 36 / 83
3.7 Work with the Trends view
Trends view
The trends view displays various trend graphs:
ST trends
For each of the twelve leads, the Trends view displays the ST trends
as measured from the ST reference point, together with the ST
slopes. You can change the ST reference point.
Workload graph The Workload graph shows the workload against time. The workload
is expressed in Watts for an ergometer test, and in METS for
treadmill tests.
Heart rate graph The Heart rate graph shows the patient's heart rate against time.
From the shortcut menu you can also select to display the VES trend
in the Heart rate graph.
Blood pressure
graph The blood pressure graph shows the patient's blood pressure
against time. From the shortcut menu you can also select to display
the RPP in the Blood pressure graph.
3.7.1. Set a different ST reference point
You can change the reference point for the ST calculation both during recording and viewing.
The values for the ST reference point can be:
J+0
J+20
J+40
J+60
J+80
J+Dynamic (J+1/16*(R-R))
To set a different ST reference point:
In the View menu, point to ST Reference Point and select a value.
You can also change the QRS end (J) marker yourself in the Average complex view.
See page 33.