Free Cardiographic Technician Questions and Answers

Question 1

Which of the following ions contributes most to the depolarizing current in pacemaker cells?

Accepted Answer

Calcium

Answer

Potassium

Answer

Chloride

Answer

Sodium

Question 2

Which of the following frequently reduces the utility of Holter monitoring as a diagnostic tool?

Accepted Answer

Patient noncompliance with keeping track of events

Answer

Transmission of data depends on patient participation

Answer

Lack of continuous monitoring

Answer

Small capacity of recording devices

Question 3

Which of the following heart conditions is brought on by the parasympathetic nervous system's actions?

Accepted Answer

Decreased rate of SA node pacing

Answer

Greater force of contraction

Answer

Decreased diastolic filling time

Answer

Increased rate of conduction

Question 4

What does the T wave on an ECG stand for?

Accepted Answer

Ventricular repolarization

Answer

Atrial depolarization

Answer

Ventricular depolarization

Answer

Atrial repolarization

Question 5

What advantages do thallium stress tests have over regular ECG stress tests?

Accepted Answer

More accurately identifies the specific areas of reduced blood flow in the heart

Answer

The test is simpler to perform

Answer

Is a safer test overall for the patient

Answer

More quickly identifies areas of myocardial ischemia in the heart

Question 6

The mitral valve has how many leaflets?

Accepted Answer

Two

Answer

Four

Answer

Three

Answer

One

Question 7

When calculating the height or depth of a wave from the baseline on an ECG, what is being measured?

Accepted Answer

Voltage

Answer

Resistance

Answer

Power

Answer

Current