EKG ADVANCED CERTIFICATION PREP
QUESTIONS WITH VERIFIED
ANSWERS.NEW UPDATE. JUST
RELEASED
1. Which of the following ECG findings is most characteristic of Brugada Syndrome Type 1?
A. Saddle-back ST-segment elevation in leads II, III, and aVF
B. Coved ST-segment elevation >2mm followed by a negative T-wave in V1-V2
C. Short PR interval with a delta wave in precordial leads
D. Deep Q-waves in the lateral leads with T-wave inversion
Answer: B
Conceptual Explanation: Brugada Syndrome Type 1 is identified by a coved ST-segment
elevation of at least 2mm that descends into a negative T-wave in the right precordial leads
(V1-V2).
2. In a patient with Wellens’ Syndrome, what is the clinical significance of biphasic or deeply
inverted T-waves in leads V2-V3?
A. Acute pulmonary embolism
B. Right ventricular hypertrophy
,C. High-grade stenosis of the proximal Left Anterior Descending (LAD) artery
D. Digoxin toxicity
Answer: C
Conceptual Explanation: Wellens’ Syndrome T-wave changes are highly specific for
critical stenosis of the proximal LAD, placing the patient at high risk for an extensive
anterior wall MI.
3. Which formula is most commonly used to calculate the corrected QT interval (QTc)?
A. Einthoven’s Formula
B. Henderson-Hasselbalch Formula
C. Cockcroft-Gault Formula
D. Bazett’s Formula
Answer: D
Conceptual Explanation: Bazett’s Formula (QTc = QT / square root of RR) is the standard
method for correcting the QT interval for heart rate.
4. What is the hallmark ECG feature of Arrhythmogenic Right Ventricular Cardiomyopathy
(ARVC)?
A. U-waves in V4-V6
B. Delta waves in all limb leads
C. Osborne waves in hypothermia
, D. Epsilon wave at the end of the QRS complex
Answer: D
Conceptual Explanation: The Epsilon wave is a small notch at the end of the QRS complex,
usually seen in lead V1, and is characteristic of ARVC.
5. An ECG shows a rhythm with a PR interval that progressively lengthens until a QRS complex
is dropped. This is known as:
A. Mobitz Type II
B. First-degree Heart Block
C. Mobitz Type I (Wenckebach)
D. Third-degree Heart Block
Answer: C
Conceptual Explanation: Mobitz Type I, or Wenckebach, is characterized by progressive
PR prolongation leading to a non-conducted P-wave.
6. Which lead is most useful for identifying a Posterior Myocardial Infarction through
reciprocal changes?
A. Lead II
B. Lead aVR
C. Lead V6
D. Lead V1
QUESTIONS WITH VERIFIED
ANSWERS.NEW UPDATE. JUST
RELEASED
1. Which of the following ECG findings is most characteristic of Brugada Syndrome Type 1?
A. Saddle-back ST-segment elevation in leads II, III, and aVF
B. Coved ST-segment elevation >2mm followed by a negative T-wave in V1-V2
C. Short PR interval with a delta wave in precordial leads
D. Deep Q-waves in the lateral leads with T-wave inversion
Answer: B
Conceptual Explanation: Brugada Syndrome Type 1 is identified by a coved ST-segment
elevation of at least 2mm that descends into a negative T-wave in the right precordial leads
(V1-V2).
2. In a patient with Wellens’ Syndrome, what is the clinical significance of biphasic or deeply
inverted T-waves in leads V2-V3?
A. Acute pulmonary embolism
B. Right ventricular hypertrophy
,C. High-grade stenosis of the proximal Left Anterior Descending (LAD) artery
D. Digoxin toxicity
Answer: C
Conceptual Explanation: Wellens’ Syndrome T-wave changes are highly specific for
critical stenosis of the proximal LAD, placing the patient at high risk for an extensive
anterior wall MI.
3. Which formula is most commonly used to calculate the corrected QT interval (QTc)?
A. Einthoven’s Formula
B. Henderson-Hasselbalch Formula
C. Cockcroft-Gault Formula
D. Bazett’s Formula
Answer: D
Conceptual Explanation: Bazett’s Formula (QTc = QT / square root of RR) is the standard
method for correcting the QT interval for heart rate.
4. What is the hallmark ECG feature of Arrhythmogenic Right Ventricular Cardiomyopathy
(ARVC)?
A. U-waves in V4-V6
B. Delta waves in all limb leads
C. Osborne waves in hypothermia
, D. Epsilon wave at the end of the QRS complex
Answer: D
Conceptual Explanation: The Epsilon wave is a small notch at the end of the QRS complex,
usually seen in lead V1, and is characteristic of ARVC.
5. An ECG shows a rhythm with a PR interval that progressively lengthens until a QRS complex
is dropped. This is known as:
A. Mobitz Type II
B. First-degree Heart Block
C. Mobitz Type I (Wenckebach)
D. Third-degree Heart Block
Answer: C
Conceptual Explanation: Mobitz Type I, or Wenckebach, is characterized by progressive
PR prolongation leading to a non-conducted P-wave.
6. Which lead is most useful for identifying a Posterior Myocardial Infarction through
reciprocal changes?
A. Lead II
B. Lead aVR
C. Lead V6
D. Lead V1
