GE CARESCAPE, User Manual

Page: 161 / 548

ECG
When the Maximum filter is selected, the prompt text Warning: Maximum
filter alters the displayed ECG morphology is displayed.
Setting the QRS width
NOTE
This setting affects the arrhythmia detection sensitivity.
This selection is not available with combination monitoring.
If the QRS Width is locked in the Care Unit Settings , the option is not selectable.
1. Select the HR parameter window.
2. Select the Advanced tab.
3. Select a setting from the QRS Width list. Choices are:
●
Narrow : Intended for use with all neonates and the pediatric patient with a
QRS complex width of 100 ms or less. This is the default setting for the Infant
and Pediatric profiles.
●
Normal : Intended for ECG rhythms that have QRS complex widths of
approximately 70 ms or wider (for example, almost all adult patients and any
patient with electronic ventricular pacing).
Selecting the leads for ECG analysis
You can choose whether the monitor performs an ECG analysis using single lead ECG
data or data from multiple ECG leads. Multiple ECG leads will typically reduce false
alarms and improve the detection sensitivity. However, if most leads are noisy or low
amplitude, the
Single lead mode using the best available ECG lead will help.
With a 3-leadwire cable the setting is Single lead and cannot be changed. If the
measurement mode is changed from the 3–leadwire mode to 5–, 6–, 10–lead or 12RL
mode, the setting changes to
Multi lead .
1. Select the HR parameter window.
2. Select the Advanced tab.
3. Select an option from the Lead Analysis list. The choices are:
●
Single lead : EkPro algorithm uses one of the leads I, II, III, or V1 for the analysis.
ECG 1 Lead is used for the analysis if it is I, II, III, or V1. If it is anything else, then
the following mapping is used: V2 to V6 = V1, aVR = II, aVL = I, aVF = III. Also
note that the ST values are only calculated for the single lead.
●
Multi lead : EkPro algorithm uses the following leads:
￭
3–lead mode: the only measured lead (I, II, or III)
￭
5–lead and 6–lead mode: any lead assigned to Va.
￭
12RL mode: I, II, III, and V1.
￭
12–lead mode: I, II, III, and V1.
Relearning the patient’s QRS pattern
During ECG monitoring, you may need to use the Relearn QRS feature when a
dramatic change in the patient’s ECG pattern has occurred. Allowing the monitor to
learn the new ECG pattern corrects false arrhythmia alarms and heart rate values,
and restores the ST measurements. Relearning takes typically 30 seconds or less. The
message
Relearning... displays while the monitor relearns the QRS pattern. During this
2062971-001 CARESCAPE Modular Monitors 161