St settings, St alarm messages – Welch Allyn 1500 Patient Monitor v.1.3.X - User Manual User Manual
Page 57
Directions for use
Monitoring and Measurements
53
ST settings
The parameter settings are selected with the trim knob, described previously (see
“Settings via a parameter field”
The default settings are in
bold
.
ST alarm messages
Note
ST measurements can only be displayed when the full arrhythmia and ST option is
licensed, and when ST is enabled in setup parameters (See
).
Main menu
Parameter
Description
Setup ST
ST Relearn
Reanalyzes the QRS complexes to determine
base measurement levels.
ST Lead 1
Define the lead for measurement 1 (default lead
II
).
ST lead 2
Define the lead for measurement 2 (default lead
V
).
ST Measurement point
Auto,
60, 80. Define the measurement point (ms
after the j-point).
Note: When Auto is defined, the measurement
point is set to either 60 or 80 ms. This is
dependent on the results of an algorithm that
builds a hysteresis counter based on the
patient's average heart rate - a faster heart rate
is set at 60 ms.
Lower limit / upper limit
Range: -10 to +10
Lower limit default -1
Upper limit default +1
Alarm level
Off, Low, Medium, High.
Print on alarm
Yes, No.
Presets
Select to return all ST settings to the defaults.
Alarm
Possible cause
Suggested action
ST > [upper limit]
ST< [lower limit]
ST is higher or lower than the
alarm limit.
Check the patient.