NHA Certified EKG Technician (CET)

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Chest electrodes V1 and V2 are placed in the 2nd intercostal space instead of the 4th. What is the MOST likely consequence on the tracing?

No effect because precordial leads are not position-sensitive Poor R-wave progression and pseudo-anteroseptal patterns that can mimic abnormality The limb leads will be inverted Heart rate will be calculated too fast

Correct Answer:

Poor R-wave progression and pseudo-anteroseptal patterns that can mimic abnormality

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