Free Certified Cardiographic Technician Questions And Answers

Question 1

Which cardiac chamber pumps blood with low oxygen content to the lungs?

Accepted Answer

Right ventricle

Answer

Left atrium

Answer

Left ventricle

Answer

Right atrium

Question 2

What lead is most susceptible to respiration?

Accepted Answer

Lead III

Answer

Lead I

Answer

V2

Answer

V4

Question 3

Which of the following describes how action potentials should travel through the heart?

Accepted Answer

SA node → AV node → bundle branches → Purkinje fibers

Answer

Purkinje fibers → SA node → bundle branches → AV node

Answer

AV node → SA node → bundle branches → Purkinje fibers

Answer

Bundle branches → Purkinje fibers → SA node → AV node

Question 4

Which kind of heart block can be noticed in the electrocardiogram (ECG) strip below?

Accepted Answer

Second-degree heart block, type 1

Answer

Third-degree heart block

Answer

First-degree heart block

Answer

Second-degree heart block, type 2

Question 5

What is the standard size of the calibration mark that indicates the sensitivity of an ECG machine while calibrating one?

Accepted Answer

10 mm in height

Answer

20 mm in height

Answer

15 mm in height

Answer

5 mm in height

Question 6

Which of the following best describes how nitrates work?

Accepted Answer

Dilation of coronary arteries

Answer

Decrease cardiac contractility

Answer

Decrease the responsiveness of heart to the sympathetic nervous system

Answer

Lower the heart rate

Question 7

In fast-responding cardiac tissues, which step of the action potential involves rapid depolarization and bringing the resting cell to threshold?

Accepted Answer

phase 0

Answer

phase 1

Answer

phase 2

Answer

phase 3