NHA EKG Module I Quiz

What does EKG stand for?

• Electrocardiology

• Electrocardiograph

• Electrocardiography

• Electrocardiogram

What is the main purpose of an EKG?

• To assess lung function

• To measure blood pressure

• To detect and diagnose heart problems

• To monitor brain activity

Which part of the heart is responsible for pumping oxygenated blood to the body?

• Left ventricle

• Left atrium

• Aorta

• Right ventricle

What is the normal heart rate range for adults?

• 60-100 beats per minute

• 20-40 beats per minute

• 120-150 beats per minute

• 200-250 beats per minute

Which of the following is not a component of the electrical conduction system of the heart?

• Atrioventricular (AV) node

• Sinoatrial (SA) node

• Purkinje fibers

• Bundle of His

What is the correct sequence of electrical conduction in the heart?

• AV node → SA node → Bundle of His → Purkinje fibers

• SA node → Bundle of His → AV node → Purkinje fibers

• SA node → AV node → Bundle of His → Purkinje fibers

• SA node → AV node → Bundle of His → Atria

Which of the following is not a characteristic of a normal EKG waveform?

• Distinct P wave

• Regular intervals

• Normal QRS complex

• Irregular intervals

What does the QRS complex represent in an EKG?

• Depolarization of the atria

• Repolarization of the atria

• Depolarization of the ventricles

• Contraction of the atria

What is the correct placement of the EKG leads?

• RA, LA, RL, LL, V1, V2, V3, V4, V5, V6, V7

• RA, LA, RL, LL, V1, V2, V3, V4, V5

• RA, LA, RL, LL, V1, V2, V3, V4

• The correct placement of the EKG leads is as follows: RA, LA, RL, LL, V1, V2, V3, V4, V5, V6.

Which of the following is not a part of the EKG waveform?

• P wave

• QRS complex

• T wave

• Z wave