EKG certification Certification FREE EKG Technician Certification Question and Answers 3

Question 1

When performing a resting 12-lead EKG, what should the paper speed be set to by default?

Accepted Answer

25 mm/sec

Answer

10 mm/sec

Answer

50 mm/sec

Answer

100 mm/sec

Question 2

An EKG technician obtains a tracing showing a regular narrow-complex tachycardia at 150 bpm with sawtooth-shaped waves. What is the most likely rhythm?

Accepted Answer

Atrial flutter with 2:1 block

Answer

Sinus tachycardia

Answer

Supraventricular tachycardia

Answer

Ventricular tachycardia

Question 3

Which artifact appears as a regular, rapid, small-amplitude interference pattern on an EKG tracing?

Accepted Answer

60-cycle (AC) interference

Answer

Baseline wander

Answer

Muscle tremor artifact

Answer

Wandering baseline from respiration

Question 4

ST segment elevation in leads V1 through V4 most likely indicates ischemia in which coronary artery territory?

Accepted Answer

Left anterior descending artery

Answer

Right coronary artery

Answer

Left circumflex artery

Answer

Posterior descending artery

Question 5

What is the correct limb lead placement for the right arm electrode?

Accepted Answer

Anywhere on the right arm between shoulder and wrist, avoiding bony prominences

Answer

Right wrist, palmar side

Answer

Right shoulder, below the clavicle

Answer

Right upper arm only, over the bicep muscle

Question 6

What does the T wave on an EKG tracing represent?

Accepted Answer

Ventricular repolarization

Answer

Atrial depolarization

Answer

Ventricular depolarization

Answer

Atrial repolarization