Welch Allyn CP100 And CP200 Software Upgrade Instructions - Installation Guide - Manual (Page 4)

CP 100/CP 200 Electrocardiographs – Software Release 2.2
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For the CP100, the user will be prompted with the following messages on the screen prior to acquiring the
ECG. If the unit detects poor lead quality / detection it will give the message of “Artifact” on the status bar.
Likewise if it detects a disconnected lead it will prompt “Lead Off” on the status bar. See Figure 4.
CP100 Artifact CP100 Lead Off
Figure 4
For good quality recordings, leads must be connected and artifact free. If you print an Auto ECG despite
lead-off or artifact conditions (by overriding the “Waiting for 10 seconds of quality data” message), the
report reflects those conditions. In the case of lead-off signals, the report shows square waves. In the
case of artifact, the report might include a warning to use the interpretation (if any) with caution.
To eliminate artifact, you might need to re-prep the patient, use fresh electrodes, or minimize patient
motion during the recording.
For additional feedback on lead quality, you can now enable an artifact report. This report, a 12x1 format
with all filters disabled, shows the leads with artifact so that you can remedy the problem. (The normal
Auto ECG report with filters enabled might mask some of the artifact issues.) When enabled, the artifact
report prints automatically with the Auto ECG report whenever artifact is detected and you override the
“Waiting for 10 seconds of quality data” message.