Florida EKG Technician Certification
Exam with Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
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1. What does EKG stand for?
A. Electrokinetic Graph
B. Electrocardiogram
C. Electrical Kardiac Generator
D. Electrographic Kinetics
Answer: B
Rationale: An electrocardiogram (EKG or ECG) records the electrical activity of the
heart.
2. Which wave on an EKG represents atrial depolarization?
A. T wave
B. QRS complex
C. P wave
D. U wave
Answer: C
Rationale: The P wave represents electrical activity causing atrial contraction.
3. The QRS complex represents:
A. Atrial repolarization
B. Ventricular depolarization
C. Ventricular repolarization
D. SA node discharge
Answer: B
Rationale: The QRS complex reflects ventricular depolarization.
,4. Which wave represents ventricular repolarization?
A. P wave
B. U wave
C. T wave
D. Q wave
Answer: C
Rationale: The T wave reflects recovery of the ventricles after contraction.
5. Which structure is known as the heart's natural pacemaker?
A. AV node
B. Bundle branches
C. SA node
D. Purkinje fibers
Answer: C
Rationale: The sinoatrial (SA) node initiates the electrical impulse that starts each
heartbeat.
6. How many standard limb leads are used in a 12-lead EKG?
A. 2
B. 3
C. 4
D. 6
Answer: C
Rationale: The standard limb electrodes are RA, LA, RL, and LL.
7. Which paper speed is most commonly used for routine EKG recordings?
A. 10 mm/sec
B. 25 mm/sec
C. 50 mm/sec
D. 100 mm/sec
Answer: B
, Rationale: Standard EKG recordings are typically performed at 25 mm/sec.
8. What is the purpose of the conductive gel on electrodes?
A. Improve battery life
B. Increase paper speed
C. Enhance electrical conduction
D. Reduce heart rate
Answer: C
Rationale: Conductive gel improves transmission of electrical signals from the skin.
9. Which lead is considered the ground electrode in a standard EKG?
A. Right leg
B. Left arm
C. Right arm
D. Left leg
Answer: A
Rationale: The right leg electrode serves as the grounding lead.
10. What is the normal resting heart rate range for adults?
A. 20–40 bpm
B. 40–60 bpm
C. 60–100 bpm
D. 100–140 bpm
Answer: C
Rationale: Normal adult resting heart rate is generally 60–100 bpm.
11. Which interval measures conduction from the atria to the ventricles?
A. QT interval
B. PR interval
C. RR interval
D. ST segment
Answer: B
Exam with Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What does EKG stand for?
A. Electrokinetic Graph
B. Electrocardiogram
C. Electrical Kardiac Generator
D. Electrographic Kinetics
Answer: B
Rationale: An electrocardiogram (EKG or ECG) records the electrical activity of the
heart.
2. Which wave on an EKG represents atrial depolarization?
A. T wave
B. QRS complex
C. P wave
D. U wave
Answer: C
Rationale: The P wave represents electrical activity causing atrial contraction.
3. The QRS complex represents:
A. Atrial repolarization
B. Ventricular depolarization
C. Ventricular repolarization
D. SA node discharge
Answer: B
Rationale: The QRS complex reflects ventricular depolarization.
,4. Which wave represents ventricular repolarization?
A. P wave
B. U wave
C. T wave
D. Q wave
Answer: C
Rationale: The T wave reflects recovery of the ventricles after contraction.
5. Which structure is known as the heart's natural pacemaker?
A. AV node
B. Bundle branches
C. SA node
D. Purkinje fibers
Answer: C
Rationale: The sinoatrial (SA) node initiates the electrical impulse that starts each
heartbeat.
6. How many standard limb leads are used in a 12-lead EKG?
A. 2
B. 3
C. 4
D. 6
Answer: C
Rationale: The standard limb electrodes are RA, LA, RL, and LL.
7. Which paper speed is most commonly used for routine EKG recordings?
A. 10 mm/sec
B. 25 mm/sec
C. 50 mm/sec
D. 100 mm/sec
Answer: B
, Rationale: Standard EKG recordings are typically performed at 25 mm/sec.
8. What is the purpose of the conductive gel on electrodes?
A. Improve battery life
B. Increase paper speed
C. Enhance electrical conduction
D. Reduce heart rate
Answer: C
Rationale: Conductive gel improves transmission of electrical signals from the skin.
9. Which lead is considered the ground electrode in a standard EKG?
A. Right leg
B. Left arm
C. Right arm
D. Left leg
Answer: A
Rationale: The right leg electrode serves as the grounding lead.
10. What is the normal resting heart rate range for adults?
A. 20–40 bpm
B. 40–60 bpm
C. 60–100 bpm
D. 100–140 bpm
Answer: C
Rationale: Normal adult resting heart rate is generally 60–100 bpm.
11. Which interval measures conduction from the atria to the ventricles?
A. QT interval
B. PR interval
C. RR interval
D. ST segment
Answer: B
