Question

A patient presents ales and oriented, but a CPCT finds that all the waveforms are negative in Lead I. The technician should check the cable connections for what limb electrodes?

Answer 1

When all waveforms are negative in Lead I, the technician should check the electrode connections for the RA (right arm) and LA (left arm). Proper attachment and function of these electrodes are crucial for accurate ECG readings.

Step-by-step explanation:

If all the waveforms are negative in Lead I on an ECG, it suggests that there may be an issue with the limb electrode connections. Lead I measures the voltage difference between the right arm (RA) and the left arm (LA). When waveforms appear inverted (all negative), it is a common indication that the limb electrodes might have been placed incorrectly or there might be a connection problem. The CPCT should check the connections for the RA (right arm) and LA (left arm) electrodes to ensure they are properly attached and functioning correctly.