CCT - Certified Cardiographic Technician Cardiovascular Anatomy and Physiology Questions and Answers

Question 1

A red blood cell is in the right atrium. Which of the following represents the correct path it will take through the heart's valves to reach the systemic circulation via the aorta?

Accepted Answer

Tricuspid -> Pulmonic -> Mitral -> Aortic

Answer

Mitral -> Aortic -> Tricuspid -> Pulmonic

Answer

Tricuspid -> Aortic -> Mitral -> Pulmonic

Answer

Pulmonic -> Tricuspid -> Aortic -> Mitral

Question 2

A patient's ECG shows a complete absence of P waves and a regular, narrow-complex rhythm at a rate of 50 beats per minute. Which structure has most likely taken over as the primary pacemaker of the heart?

Accepted Answer

Atrioventricular (AV) node

Answer

Sinoatrial (SA) node

Answer

Purkinje fibers

Answer

Bundle of His

Question 3

An ECG shows ST-segment elevation in leads II, III, and aVF, indicating an injury to the inferior wall of the left ventricle. Occlusion of which coronary artery is the most likely cause of this finding?

Accepted Answer

Right Coronary Artery (RCA)

Answer

Left Anterior Descending (LAD) artery

Answer

Circumflex (Cx) artery

Answer

Left Main Coronary Artery

Question 4

Which layer of the heart wall is composed of cardiac muscle and is primarily responsible for the heart's pumping action?

Accepted Answer

Myocardium

Answer

Endocardium

Answer

Pericardium

Answer

Epicardium

Question 5

On a standard ECG tracing, which waveform represents the electrical activation and depolarization of the ventricular myocardium?

Accepted Answer

QRS complex

Answer

P wave

Answer

T wave

Answer

U wave

Question 6

A patient at rest has a heart rate of 70 beats per minute and a stroke volume of 60 mL per beat. What is the patient's cardiac output?

Accepted Answer

4.2 L/min

Answer

1.16 L/min

Answer

3.6 L/min

Answer

7.0 L/min

A red blood cell is in the right atrium.Which of the following represents the correct path it will take through the heart's valves to reach the systemic circulation via the aorta?

A red blood cell is in the right atrium.
Which of the following represents the correct path it will take through the heart's valves to reach the systemic circulation via the aorta?