CET Cardiovascular Anatomy & Physiology 5

Question 1

Which of the following correctly describes cardiac output (CO)?

Accepted Answer

Heart rate multiplied by stroke volume

Answer

Cardiac output equals heart rate × stroke volume, representing the volume of blood pumped by the heart per minute.

Question 2

Which echocardiographic view best visualizes all four cardiac chambers simultaneously?

Accepted Answer

Apical four-chamber view

Answer

The apical four-chamber view displays both atria and both ventricles as well as the mitral and tricuspid valves simultaneously.

Question 3

In a normal heart, the P wave on ECG corresponds to which mechanical event?

Accepted Answer

Atrial depolarization and contraction

Answer

The P wave represents electrical depolarization spreading through the atria, which triggers atrial contraction.

Question 4

Cardiac tamponade is most commonly identified on echocardiography by which finding?

Accepted Answer

Diastolic collapse of the right atrium and right ventricle with pericardial effusion

Answer

Elevated intrapericardial pressure in tamponade causes diastolic collapse (invagination) of right-sided chambers, indicating hemodynamic compromise.

Question 5

Which coronary artery supplies the anterior wall of the left ventricle and the anterior two-thirds of the interventricular septum?

Accepted Answer

Left anterior descending artery

Answer

The LAD (left anterior descending artery) supplies the anterior LV wall, apex, and anterior septum, making it the most clinically significant coronary vessel.

(CET) Certified Echocardiography Technician Practice Test

(CET) Certified Echocardiography Technician Practice Test

CET Cardiovascular Anatomy & Physiology 5