EKG certification Certification EKG Technician Certification 1

Question 1

Which of the following correctly describes the normal PR interval on an adult EKG?

Accepted Answer

0.12–0.20 seconds

Answer

0.04–0.10 seconds

Answer

0.22–0.30 seconds

Answer

0.30–0.40 seconds

Question 2

When applying electrodes for a 12-lead EKG, where should the RA (right arm) limb electrode be placed?

Accepted Answer

On the right wrist or anywhere on the right arm

Answer

On the right leg above the ankle

Answer

On the left arm at the shoulder

Answer

On the right side of the chest at the fourth intercostal space

Question 3

A patient's EKG shows a rhythm with no identifiable P waves and an irregularly irregular ventricular response. What rhythm does this most likely represent?

Accepted Answer

Atrial fibrillation

Answer

Atrial flutter

Answer

Junctional tachycardia

Answer

Second-degree AV block type I

Question 4

What is the correct paper speed used for a standard resting 12-lead EKG?

Accepted Answer

25 mm/sec

Answer

10 mm/sec

Answer

50 mm/sec

Answer

100 mm/sec

Question 5

An EKG tracing shows ST-segment elevation in leads V1 through V4. Which region of the myocardium is most likely affected?

Accepted Answer

Anterior wall

Answer

Inferior wall

Answer

Lateral wall

Answer

Posterior wall

Question 6

What does the QRS complex on an EKG represent?

Accepted Answer

Ventricular depolarization

Answer

Atrial depolarization

Answer

Ventricular repolarization

Answer

AV node conduction delay