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Cardiology, Electrophysiology & Cardiac Surgery (Clinical Super-Specialties & Advanced Surgery) Solved Questions & Notes (2026) - Apex Rankers

Medical & Health Sciences > Clinical Super-Specialties & Advanced Surgery > Cardiology, Electrophysiology & Cardiac Surgery

72 Total Questions
~108 mins Read Time
1 Subject Areas
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Q. 1 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
The diagnostic ECG hallmark of acute transmural myocardial infarction is:
A
U waves
B
Inverted P waves
C
PR prolongation
D
ST-segment elevation (STEMI) in contiguous leads
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Transmural ischemia produces an epicardial injury current presenting as ST elevation.
Q. 2 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
First-line drug for pharmacological termination of stable Paroxysmal Supraventricular Tachycardia (PSVT) is:
A
Amiodarone oral
B
Adenosine (rapid IV push)
✓ Correct
C
Atropine
D
Digoxin
💡 Step-by-Step Explanation & Concept Rationale
Adenosine transiently blocks the AV node, terminating re-entrant tachycardia circuits.
Q. 3 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
Which cardiac arrest rhythms are shockable with unsynchronized electrical defibrillation?
A
Atrial fibrillation
B
Sinus bradycardia
C
Asystole and PEA
D
Ventricular Fibrillation (VF) and Pulseless Ventricular Tachycardia (pVT)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Defibrillation depolarizes chaotic myocardium to permit resumption of sinus rhythm.
Q. 4 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
The most sensitive and specific biomarker for acute myocardial necrosis is:
A
High-Sensitivity Cardiac Troponin (cTnI / cTnT)
✓ Correct
B
Myoglobin
C
AST
D
LDH
💡 Step-by-Step Explanation & Concept Rationale
Troponins are structural contractile proteins released exclusively upon cardiomyocyte death.
Q. 5 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
In CABG surgery, which conduit offers the highest 10-year patency rate (>90%)?
A
Gastroepiploic artery
B
Saphenous vein graft
C
Radial artery
D
Left Internal Mammary Artery (LIMA to LAD)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
LIMA produces high endogenous nitric oxide, resisting intimal hyperplasia and atherosclerosis.
Q. 6 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In professional practice: The diagnostic ECG hallmark of acute transmural myocardial infarction is:
A
U waves
B
Inverted P waves
C
ST-segment elevation (STEMI) in contiguous leads
✓ Correct
D
PR prolongation
💡 Step-by-Step Explanation & Concept Rationale
Transmural ischemia produces an epicardial injury current presenting as ST elevation.
Q. 7 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In professional practice: First-line drug for pharmacological termination of stable Paroxysmal Supraventricular Tachycardia (PSVT) is:
A
Amiodarone oral
B
Digoxin
C
Atropine
D
Adenosine (rapid IV push)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Adenosine transiently blocks the AV node, terminating re-entrant tachycardia circuits.
Q. 8 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
In professional practice: Which cardiac arrest rhythms are shockable with unsynchronized electrical defibrillation?
A
Sinus bradycardia
B
Atrial fibrillation
C
Asystole and PEA
D
Ventricular Fibrillation (VF) and Pulseless Ventricular Tachycardia (pVT)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Defibrillation depolarizes chaotic myocardium to permit resumption of sinus rhythm.
Q. 9 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
In professional practice: The most sensitive and specific biomarker for acute myocardial necrosis is:
A
AST
B
LDH
C
High-Sensitivity Cardiac Troponin (cTnI / cTnT)
✓ Correct
D
Myoglobin
💡 Step-by-Step Explanation & Concept Rationale
Troponins are structural contractile proteins released exclusively upon cardiomyocyte death.
Q. 10 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
In professional practice: In CABG surgery, which conduit offers the highest 10-year patency rate (>90%)?
A
Saphenous vein graft
B
Gastroepiploic artery
C
Left Internal Mammary Artery (LIMA to LAD)
✓ Correct
D
Radial artery
💡 Step-by-Step Explanation & Concept Rationale
LIMA produces high endogenous nitric oxide, resisting intimal hyperplasia and atherosclerosis.
Q. 11 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
According to standard examination standards: The diagnostic ECG hallmark of acute transmural myocardial infarction is:
A
ST-segment elevation (STEMI) in contiguous leads
✓ Correct
B
Inverted P waves
C
U waves
D
PR prolongation
💡 Step-by-Step Explanation & Concept Rationale
Transmural ischemia produces an epicardial injury current presenting as ST elevation.
Q. 12 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
According to standard examination standards: First-line drug for pharmacological termination of stable Paroxysmal Supraventricular Tachycardia (PSVT) is:
A
Amiodarone oral
B
Adenosine (rapid IV push)
✓ Correct
C
Atropine
D
Digoxin
💡 Step-by-Step Explanation & Concept Rationale
Adenosine transiently blocks the AV node, terminating re-entrant tachycardia circuits.
Q. 13 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
According to standard examination standards: Which cardiac arrest rhythms are shockable with unsynchronized electrical defibrillation?
A
Asystole and PEA
B
Ventricular Fibrillation (VF) and Pulseless Ventricular Tachycardia (pVT)
✓ Correct
C
Atrial fibrillation
D
Sinus bradycardia
💡 Step-by-Step Explanation & Concept Rationale
Defibrillation depolarizes chaotic myocardium to permit resumption of sinus rhythm.
Q. 14 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
According to standard examination standards: The most sensitive and specific biomarker for acute myocardial necrosis is:
A
LDH
B
High-Sensitivity Cardiac Troponin (cTnI / cTnT)
✓ Correct
C
AST
D
Myoglobin
💡 Step-by-Step Explanation & Concept Rationale
Troponins are structural contractile proteins released exclusively upon cardiomyocyte death.
Q. 15 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
According to standard examination standards: In CABG surgery, which conduit offers the highest 10-year patency rate (>90%)?
A
Gastroepiploic artery
B
Saphenous vein graft
C
Left Internal Mammary Artery (LIMA to LAD)
✓ Correct
D
Radial artery
💡 Step-by-Step Explanation & Concept Rationale
LIMA produces high endogenous nitric oxide, resisting intimal hyperplasia and atherosclerosis.
Q. 16 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
From an applied perspective: The diagnostic ECG hallmark of acute transmural myocardial infarction is:
A
PR prolongation
B
U waves
C
Inverted P waves
D
ST-segment elevation (STEMI) in contiguous leads
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Transmural ischemia produces an epicardial injury current presenting as ST elevation.
Q. 17 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
From an applied perspective: First-line drug for pharmacological termination of stable Paroxysmal Supraventricular Tachycardia (PSVT) is:
A
Digoxin
B
Atropine
C
Adenosine (rapid IV push)
✓ Correct
D
Amiodarone oral
💡 Step-by-Step Explanation & Concept Rationale
Adenosine transiently blocks the AV node, terminating re-entrant tachycardia circuits.
Q. 18 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
From an applied perspective: Which cardiac arrest rhythms are shockable with unsynchronized electrical defibrillation?
A
Atrial fibrillation
B
Asystole and PEA
C
Sinus bradycardia
D
Ventricular Fibrillation (VF) and Pulseless Ventricular Tachycardia (pVT)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Defibrillation depolarizes chaotic myocardium to permit resumption of sinus rhythm.
Q. 19 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
From an applied perspective: The most sensitive and specific biomarker for acute myocardial necrosis is:
A
LDH
B
High-Sensitivity Cardiac Troponin (cTnI / cTnT)
✓ Correct
C
Myoglobin
D
AST
💡 Step-by-Step Explanation & Concept Rationale
Troponins are structural contractile proteins released exclusively upon cardiomyocyte death.
Q. 20 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
From an applied perspective: In CABG surgery, which conduit offers the highest 10-year patency rate (>90%)?
A
Gastroepiploic artery
B
Saphenous vein graft
C
Radial artery
D
Left Internal Mammary Artery (LIMA to LAD)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
LIMA produces high endogenous nitric oxide, resisting intimal hyperplasia and atherosclerosis.
Q. 21 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Under standard operational protocols: The diagnostic ECG hallmark of acute transmural myocardial infarction is:
A
ST-segment elevation (STEMI) in contiguous leads
✓ Correct
B
U waves
C
PR prolongation
D
Inverted P waves
💡 Step-by-Step Explanation & Concept Rationale
Transmural ischemia produces an epicardial injury current presenting as ST elevation.
Q. 22 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Under standard operational protocols: First-line drug for pharmacological termination of stable Paroxysmal Supraventricular Tachycardia (PSVT) is:
A
Amiodarone oral
B
Digoxin
C
Atropine
D
Adenosine (rapid IV push)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
Adenosine transiently blocks the AV node, terminating re-entrant tachycardia circuits.
Q. 23 MULTIPLE_CHOICE
Difficulty: MEDIUM (1 Mark)
Under standard operational protocols: Which cardiac arrest rhythms are shockable with unsynchronized electrical defibrillation?
A
Asystole and PEA
B
Sinus bradycardia
C
Ventricular Fibrillation (VF) and Pulseless Ventricular Tachycardia (pVT)
✓ Correct
D
Atrial fibrillation
💡 Step-by-Step Explanation & Concept Rationale
Defibrillation depolarizes chaotic myocardium to permit resumption of sinus rhythm.
Q. 24 MULTIPLE_CHOICE
Difficulty: EASY (1 Mark)
Under standard operational protocols: The most sensitive and specific biomarker for acute myocardial necrosis is:
A
AST
B
LDH
C
High-Sensitivity Cardiac Troponin (cTnI / cTnT)
✓ Correct
D
Myoglobin
💡 Step-by-Step Explanation & Concept Rationale
Troponins are structural contractile proteins released exclusively upon cardiomyocyte death.
Q. 25 MULTIPLE_CHOICE
Difficulty: HARD (1 Mark)
Under standard operational protocols: In CABG surgery, which conduit offers the highest 10-year patency rate (>90%)?
A
Saphenous vein graft
B
Gastroepiploic artery
C
Radial artery
D
Left Internal Mammary Artery (LIMA to LAD)
✓ Correct
💡 Step-by-Step Explanation & Concept Rationale
LIMA produces high endogenous nitric oxide, resisting intimal hyperplasia and atherosclerosis.
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