Free PCT EKG Lead Placement & Rhythm Recognition Questions and Answers

Question 1

When placing the precordial leads for a 12-lead EKG, where should the PCT place the V4 lead?

Accepted Answer

5th intercostal space, midclavicular line

Answer

The V4 lead is placed in the 5th intercostal space at the midclavicular line. This specific placement is crucial for accurately capturing the electrical activity of the heart's ventricles. Remembering the sequence V1, V2, V4, V3, V5, V6 helps ensure correct placement.

Question 2

A PCT is preparing to perform an EKG on a patient with a left leg amputation below the knee. Where should the left leg electrode be placed?

Accepted Answer

On the left lower abdomen/torso

Answer

When a limb is amputated, the electrode should be placed on the remaining part of the limb, ensuring symmetrical placement with the opposite limb. Placing it on the lower abdomen or torso provides a stable and appropriate alternative location for capturing the electrical signal.

Question 3

Which of the following describes Normal Sinus Rhythm on an EKG strip?

Accepted Answer

Regular rhythm, rate 60-100/min, P wave before each QRS

Answer

Normal Sinus Rhythm is characterized by a regular rhythm, a heart rate between 60-100 beats per minute, a P wave preceding every QRS complex, and a consistent PR interval. This indicates the heart's electrical impulse is originating correctly from the sinoatrial (SA) node.

Question 4

A PCT notes an EKG rhythm that is 'irregularly irregular' with no clear P waves. This is most characteristic of which arrhythmia?

Accepted Answer

Atrial Fibrillation

Answer

Atrial Fibrillation (A-Fib) is defined by its chaotic and irregular atrial activity, which results in an irregularly irregular ventricular response. On an EKG, this appears as a wavy baseline with no discernible P waves and an irregular R-R interval.

Question 5

What is the most likely cause of a wandering baseline artifact on an EKG tracing?

Accepted Answer

Patient movement or loose electrodes

Answer

A wandering baseline is often caused by patient movement, poor electrode contact, or respiratory interference. Ensuring the patient is still, the skin is properly prepped, and the electrodes are securely attached can minimize this type of artifact.

Patient Care Technician Test Practice Test

Patient Care Technician Test Practice Test

Free PCT EKG Lead Placement & Rhythm Recognition Questions and Answers