CCT Exam 2026 - Certified Cardiographic
Technician Test (25 Questions with 100%
Certified Answers) (A+ Graded) Last
Updated 2026/27
Question 1
Which electrode placement is most critical for accurate detection of atrial activity?
A V1,
B 3,
C lead 2,
D lead AVR.
Answer C.
Lead 2 provides the best view of atrial depolarization and is commonly used to monitor P
waves. D1 also helps, but lead 2 is most reliable for atrial activity due to its alignment with the
heart's electrical axis.
Question 2
What does a wandering baseline on an ECG tracing most often indicate?
A patient movement or breathing?
B. Ventricular tacicardia.
C. Hypercalemia.
D. Proper electrode placement.
Answer. A.
A wandering baseline usually occurs from patient movement, breathing, or loose electrodes. It is
not related to rhythm abnormalities or electrolyte imbalance.
Question 3
When performing a 12 lead ECG, which lead is placed in the fourth intercostal space at the left
sternal border?
A V1,
B2,
C V3,
D V4.
Answer: A
D1 is placed at the fourth intercostal space on the right side of the sternum. D2 is on the left
side. D3 and V4 follow accordingly.
, Question 4
Which rhythm is characterized by a saw to pattern in the atrial waves?
A ventricular fibrillation?
B. Atrial flutter?
C. Sinus bradic cardia.
D. Premature ventricular contraction.
Answer B.
Atrial flutter produces a saw to pattern of atrial waves usually at a rate of 250 to 350 BPM. It is
distinct from atrial fibrillation and other rhythms.
Question 5
What is the primary purpose of the calibration mark on an ECG paper?
A to measure heart rate.
B to ensure accurate amplitude voltage.
C to record patient temperature.
D to confirm electrode placement.
Answer B.
Calibration marks verify the ECG machine is set to the correct gain, usually 10 mm per MB. This
ensures waveforms have accurate height and amplitude.
Question 6
If a patient's ECG shows a PR interval longer than 0.20 seconds, this indicates
A sinus ticardia,
B first degree AV block,
C ventricular fibrillation,
D atrial fibrillation.
Answer B.
A PR interval greater than 0.20 seconds indicates first degree AV block. It means conduction
from atria to ventricles is delayed but still occurs.
Question 7
What is the most common cause of AC interference 60 cycle interference on ECG?
A. Low battery.
B. Electrical devices near the machine.
C. Incorrect lead placement.
D. High patient heart rate.
Answer B.
AC interference is usually caused by nearby electrical equipment or power cords. It appears as
a fuzzy regular artifact on the tracing.
Technician Test (25 Questions with 100%
Certified Answers) (A+ Graded) Last
Updated 2026/27
Question 1
Which electrode placement is most critical for accurate detection of atrial activity?
A V1,
B 3,
C lead 2,
D lead AVR.
Answer C.
Lead 2 provides the best view of atrial depolarization and is commonly used to monitor P
waves. D1 also helps, but lead 2 is most reliable for atrial activity due to its alignment with the
heart's electrical axis.
Question 2
What does a wandering baseline on an ECG tracing most often indicate?
A patient movement or breathing?
B. Ventricular tacicardia.
C. Hypercalemia.
D. Proper electrode placement.
Answer. A.
A wandering baseline usually occurs from patient movement, breathing, or loose electrodes. It is
not related to rhythm abnormalities or electrolyte imbalance.
Question 3
When performing a 12 lead ECG, which lead is placed in the fourth intercostal space at the left
sternal border?
A V1,
B2,
C V3,
D V4.
Answer: A
D1 is placed at the fourth intercostal space on the right side of the sternum. D2 is on the left
side. D3 and V4 follow accordingly.
, Question 4
Which rhythm is characterized by a saw to pattern in the atrial waves?
A ventricular fibrillation?
B. Atrial flutter?
C. Sinus bradic cardia.
D. Premature ventricular contraction.
Answer B.
Atrial flutter produces a saw to pattern of atrial waves usually at a rate of 250 to 350 BPM. It is
distinct from atrial fibrillation and other rhythms.
Question 5
What is the primary purpose of the calibration mark on an ECG paper?
A to measure heart rate.
B to ensure accurate amplitude voltage.
C to record patient temperature.
D to confirm electrode placement.
Answer B.
Calibration marks verify the ECG machine is set to the correct gain, usually 10 mm per MB. This
ensures waveforms have accurate height and amplitude.
Question 6
If a patient's ECG shows a PR interval longer than 0.20 seconds, this indicates
A sinus ticardia,
B first degree AV block,
C ventricular fibrillation,
D atrial fibrillation.
Answer B.
A PR interval greater than 0.20 seconds indicates first degree AV block. It means conduction
from atria to ventricles is delayed but still occurs.
Question 7
What is the most common cause of AC interference 60 cycle interference on ECG?
A. Low battery.
B. Electrical devices near the machine.
C. Incorrect lead placement.
D. High patient heart rate.
Answer B.
AC interference is usually caused by nearby electrical equipment or power cords. It appears as
a fuzzy regular artifact on the tracing.
