EKG certification Certification FREE ECG Technician Certification Exam Question and Answers 2

Question 1

A patient's ECG shows a PR interval of 0.28 seconds with consistent P-wave to QRS conduction. What is the most likely interpretation?

Accepted Answer

First-degree AV block

Answer

Second-degree AV block Type I

Answer

Second-degree AV block Type II

Answer

Third-degree AV block

Question 2

Which ECG lead is best for evaluating right ventricular hypertrophy?

Accepted Answer

Lead V1

Answer

Lead V5

Answer

Lead aVL

Answer

Lead II

Question 3

During a 12-lead ECG recording, the patient develops muscle tremors in the left arm. Which leads will most likely show artifact?

Accepted Answer

Leads I and aVL

Answer

Leads II and III

Answer

Leads V1 and V2

Answer

Leads V5 and V6

Question 4

What does a widened QRS complex greater than 0.12 seconds typically indicate?

Accepted Answer

Ventricular conduction delay or bundle branch block

Answer

Atrial enlargement

Answer

First-degree AV block

Answer

Normal sinus rhythm variant

Question 5

An ECG technician notices ST elevation in leads II, III, and aVF. Which coronary artery territory does this suggest?

Accepted Answer

Right coronary artery

Answer

Left anterior descending artery

Answer

Left circumflex artery

Answer

Left main coronary artery

Question 6

What is the correct placement for precordial lead V4?

Accepted Answer

Fifth intercostal space at the midclavicular line

Answer

Fourth intercostal space at the left sternal border

Answer

Fifth intercostal space at the anterior axillary line

Answer

Fourth intercostal space at the right sternal border