Introduction to EKG/ECG Interpretation exam Questions and Answers Verified Solutions Latest Update (2026/2027)

Introduction to EKG/ECG
Interpretation exam Questions and
Answers Verified Solutions Latest
Update (2026/2027)



Question:

What is an EKG?

Answer:

An electrocardiogram - abbreviated as EKG or ECG - is a test
that measures the electrical activity of the heartbeat. With each beat, an
electrical impulse (or
"wave") travels through the heart. This wave causes the muscle to squeeze
and pump blood from
the heart.




Question:

Describe the normal electrical conduction in the heart

Answer:

The electrical impulse
travels from the sinus node (upper right atrium) to the atrioventricular node
(lower right atrium)
to the Bundle of His and then down the Left and Right Bundle Branches
throughout the left and
right ventricles

, Question:

Describe the Standard Limb Leads

Answer:

Standard Limb Leads I, II, III
Lead I: (-) right arm to left arm (+)
Lead II: (-) right arm to left leg (+)
Lead III: (-) left arm to left leg (+)




Question:

Describe Lead I

Answer:

Lead I: (-) right arm to left arm (+)




Question:

Describe Lead II

Answer:

Lead II: (-) right arm to left leg (+)




Question:

Describe Lead III

Answer:

Lead III: (-) left arm to left leg (+)