Question

A patient presents alert and oriented, but an EKG technician finds that all waveforms are negative in Lead I. The technician should check the cable connections for which of the following electrodes?

a) Right arm (RA)
b) Left arm (LA)
c) Right leg (RL)
d) Left leg (LL)

Answer 1

To resolve an issue with all waveforms being negative in Lead I, an EKG technician should check the connections for the left arm (LA) electrode.

Step-by-step explanation:

If an EKG technician finds that all waveforms are negative in Lead I, they should check the cable connections for the left arm electrode (LA). Lead I is the voltage between the right arm and left arm electrodes. A negative deflection in all waveforms of Lead I may indicate that the LA and RA electrodes are reversed or that there is a problem with the wiring or connections for the LA electrode.