ADVENT HEALTH EKG EXAM PREP
2026/2027 QUESTIONS AND ANSWERS
1. What is the standard measurement for one small square on EKG grid paper in terms of
time?
A. 0.04 seconds
B. 0.10 seconds
C. 0.20 seconds
D. 0.12 seconds
Answer: A
Conceptual Explanation: On standard EKG paper, one small box (1mm) represents 0.04
seconds, while a large box (5mm) represents 0.20 seconds.
2. Which heart block is characterized by a progressively lengthening PR interval until a QRS
complex is dropped?
A. Second-degree AV block, Mobitz Type I (Wenckebach)
B. First-degree AV block
C. Second-degree AV block, Mobitz Type II
,D. Third-degree AV block
Answer: A
Conceptual Explanation: Mobitz Type I (Wenckebach) is identified by the cyclic
lengthening of the PR interval until a beat is dropped.
3. A PR interval longer than 0.20 seconds with a 1:1 P-to-QRS ratio indicates:
A. Junctional Rhythm
B. Sinus Bradycardia
C. First-degree AV block
D. Complete Heart Block
Answer: C
Conceptual Explanation: First-degree AV block is defined by a consistent PR interval
greater than 0.20 seconds without dropped beats.
4. Which lead is considered the ‘ground’ lead in a standard 12-lead EKG?
A. Left Leg (LL)
B. Right Arm (RA)
C. Right Leg (RL)
D. Left Arm (LA)
Answer: C
, Conceptual Explanation: The right leg electrode serves as the reference or ground lead to
reduce electrical interference.
5. An EKG shows a rapid, irregular rhythm with no discernible P waves and a ‘frizzled’
baseline. This is most likely:
A. Atrial Fibrillation
B. Ventricular Fibrillation
C. Atrial Flutter
D. Supraventricular Tachycardia
Answer: A
Conceptual Explanation: Atrial fibrillation is characterized by an irregularly irregular
rhythm and the absence of organized P waves.
6. In which leads would you primarily look for evidence of an inferior wall myocardial
infarction?
A. V1, V2, V3
B. I, aVL, V5, V6
C. II, III, aVF
D. V3, V4
Answer: C
2026/2027 QUESTIONS AND ANSWERS
1. What is the standard measurement for one small square on EKG grid paper in terms of
time?
A. 0.04 seconds
B. 0.10 seconds
C. 0.20 seconds
D. 0.12 seconds
Answer: A
Conceptual Explanation: On standard EKG paper, one small box (1mm) represents 0.04
seconds, while a large box (5mm) represents 0.20 seconds.
2. Which heart block is characterized by a progressively lengthening PR interval until a QRS
complex is dropped?
A. Second-degree AV block, Mobitz Type I (Wenckebach)
B. First-degree AV block
C. Second-degree AV block, Mobitz Type II
,D. Third-degree AV block
Answer: A
Conceptual Explanation: Mobitz Type I (Wenckebach) is identified by the cyclic
lengthening of the PR interval until a beat is dropped.
3. A PR interval longer than 0.20 seconds with a 1:1 P-to-QRS ratio indicates:
A. Junctional Rhythm
B. Sinus Bradycardia
C. First-degree AV block
D. Complete Heart Block
Answer: C
Conceptual Explanation: First-degree AV block is defined by a consistent PR interval
greater than 0.20 seconds without dropped beats.
4. Which lead is considered the ‘ground’ lead in a standard 12-lead EKG?
A. Left Leg (LL)
B. Right Arm (RA)
C. Right Leg (RL)
D. Left Arm (LA)
Answer: C
, Conceptual Explanation: The right leg electrode serves as the reference or ground lead to
reduce electrical interference.
5. An EKG shows a rapid, irregular rhythm with no discernible P waves and a ‘frizzled’
baseline. This is most likely:
A. Atrial Fibrillation
B. Ventricular Fibrillation
C. Atrial Flutter
D. Supraventricular Tachycardia
Answer: A
Conceptual Explanation: Atrial fibrillation is characterized by an irregularly irregular
rhythm and the absence of organized P waves.
6. In which leads would you primarily look for evidence of an inferior wall myocardial
infarction?
A. V1, V2, V3
B. I, aVL, V5, V6
C. II, III, aVF
D. V3, V4
Answer: C
