Free EKG Certification MCQ Question and Answers

Question 1

Which leads are deemed to be subpar leads?

Accepted Answer

II, III, and aVF

Answer

Leads II, III, and aVF are collectively known as the inferior leads. They provide an electrical view of the inferior wall of the left ventricle. These leads are particularly important for diagnosing inferior myocardial infarctions, as changes in their ST segments or Q waves can indicate damage to this specific heart region.

Question 2

What leads fall under the category of (left) lateral leads?

Accepted Answer

I, aVL

Answer

Leads I and aVL are classified as the high lateral leads, offering an electrical perspective of the high lateral wall of the left ventricle. Along with precordial leads V5 and V6 (low lateral leads), they help assess the lateral aspect of the heart. These leads are crucial for detecting lateral myocardial ischemia or infarction.

Question 3

Name the location of V2 that is correct:

Accepted Answer

4th right intercostal space

Answer

Lead V2 is correctly placed in the fourth intercostal space, just to the right of the sternum. This precise anatomical placement is part of the standard 12-lead EKG system, ensuring consistent and accurate recording of the heart's electrical activity. Proper lead placement is fundamental for reliable EKG interpretation.

Question 4

Give the location for V4 a name.

Accepted Answer

5th intercostal space, midclavicular line

Answer

Lead V4 is positioned in the fifth intercostal space, along the midclavicular line on the left side of the chest. This placement is crucial for obtaining an electrical view of the anterior wall of the left ventricle. It is a key lead for assessing anterior myocardial conditions.

Question 5

The V3 should be placed as follows:

Accepted Answer

Directly between leads V2 and V4

Answer

Lead V3 is placed directly between the positions of V2 and V4. V2 is at the fourth intercostal space, left sternal border, and V4 is at the fifth intercostal space, left midclavicular line. This intermediate placement ensures a smooth transition in the electrical view across the anterior chest wall, providing a comprehensive anterior perspective.

EKG certification Practice Test

EKG certification Practice Test

Free EKG Certification MCQ Question and Answers