Lead alert or square wave – Welch Allyn CP50 - Quick Reference Guide User Manual
Page 15
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Lead alert or square wave
A dot might be flashing on the lead-status screen. Or one or more leads might appear as
a square wave.
Causes
•
Electrode contact might be poor.
•
A lead might be loose.
•
A lead might be defective.
Actions
•
Replace the electrode.
•
Verify that the patient’s skin has been properly prepared.
•
Verify that electrodes have been properly stored and handled.
•
Replace the patient cable.
Troubleshooting 15
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