EKG(Part 2): Lesson 11 - Fundamentals of EKG Analysis: EKG Tracing and Waveforms

On EKG paper, what is measured on the horizontal axis?

Time

According to the calibration, the EKG looks wider than normal. What could be the possible reasons?

Overdamping calibration

What is the most common placement of the leads from the Einthoven’s triangle?

Positive left leg and negative right arm

The P wave on an EKG strip measure 0.20 mV. Based on this information, as an EKG technician what would understand?

The measure is based on the number of small squares on the vertical axis.

This imaginary line runs horizontally and divides the body into inferior and superior sections describing which part of the body or the position?

Transverse

What are the reciprocal contiguous leads for I, aVL, V5, and V6 leads?

II, III, and aVF

An EKG strip does not have a negative deflection after the P wave. Which is the next wave with a positive deflection?

R wave

If you observe the inverted lead I waveform, what should be checked first as an EKG Technician?

Reversal of LA/RA

The electrode placed on the right leg (RL) is known as a ground lead in terms of an EKG test. It is called a ground lead because…

This electrode only helps to remove potential artifacts from the EKG.

On the EKG strip measuring QT interval of 510 ms. Identify the QT Interval

Prolonged QT Interval