CCT CCI EXAM STUDY GUIDE 2026 – COMPLETE
CONCEPT REVIEW & PRACTICE MATERIALS (LATEST
EDITION)
Section 1: Anatomy & Physiology (20 Questions)
1. The "pacemaker" of the heart is the:
a) Atrioventricular node
b) Bundle of His
c) Sinoatrial node ✓
d) Purkinje fibers
2. The coronary artery that supplies blood to the right ventricle and the inferior wall of the
left ventricle is the:
a) Left Anterior Descending (LAD)
b) Circumflex Artery (LCx)
c) Right Coronary Artery (RCA) ✓
d) Left Main Coronary Artery
3. The mitral valve is located between the:
a) Right atrium and right ventricle
b) Left atrium and left ventricle ✓
c) Right ventricle and pulmonary artery
d) Left ventricle and aorta
4. Cardiac output is calculated as:
a) Heart Rate x Blood Pressure
b) Stroke Volume x Total Peripheral Resistance
c) Heart Rate x Stroke Volume ✓
d) Preload x Afterload
5. The phase of the cardiac cycle where ventricular filling occurs is:
a) Systole
b) Diastole ✓
c) Isovolumetric contraction
d) Ejection
6. The primary artery used for arterial access in a left heart catheterization is most commonly
the:
,a) Brachial artery
b) Femoral artery ✓
c) Radial artery
d) Ulnar artery
7. The vessel that returns oxygenated blood from the lungs to the left atrium is the:
a) Pulmonary artery
b) Pulmonary vein ✓
c) Aorta
d) Superior vena cava
8. The Frank-Starling law states that:
a) Heart rate is inversely proportional to blood pressure.
b) The more the heart fills during diastole, the greater the force of contraction during systole. ✓
c) Coronary perfusion occurs primarily during systole.
d) Electrical conduction velocity is constant in healthy myocardium.
9. The vessel that is most often used as a conduit for coronary artery bypass grafting (CABG) is
the:
a) Femoral vein
b) Internal mammary artery ✓
c) Saphenous vein
d) Subclavian artery
10. The normal pacemaker of the heart (SA node) typically depolarizes at a rate of:
a) 20-40 bpm
b) 40-60 bpm
c) 60-100 bpm ✓
d) 100-150 bpm
11. The QRS complex on an ECG represents:
a) Atrial depolarization
b) Atrial repolarization
c) Ventricular depolarization ✓
d) Ventricular repolarization
12. The "dicrotic notch" on an arterial pressure waveform is caused by:
a) Atrial contraction
b) Closure of the aortic valve ✓
,c) Opening of the mitral valve
d) Rapid ventricular filling
13. The vessel that supplies the posterior descending artery (PDA) in a "right-dominant"
coronary system is the:
a) Left Anterior Descending (LAD)
b) Circumflex Artery (LCx)
c) Right Coronary Artery (RCA) ✓
d) Obtuse Marginal
14. The primary determinant of myocardial oxygen demand is:
a) Heart rate ✓
b) Systemic vascular resistance
c) Blood volume
d) Pulmonary capillary wedge pressure
15. Coronary artery perfusion to the left ventricle occurs mainly during:
a) Systole
b) Diastole ✓
c) Atrial contraction
d) The entire cardiac cycle equally
16. The moderator band is a structure found in the:
a) Left atrium
b) Left ventricle
c) Right atrium
d) Right ventricle ✓
17. The innermost layer of the heart wall, which lines the chambers, is the:
a) Epicardium
b) Myocardium
c) Endocardium ✓
d) Pericardium
18. The term "preload" refers to:
a) The pressure the ventricle must overcome to eject blood
b) The degree of stretch of the ventricular myocardium at the end of diastole ✓
c) The resistance in the systemic circulation
d) The force of ventricular contraction
, 19. The artery commonly accessed for a transradial cardiac catheterization is the:
a) Brachial artery
b) Radial artery ✓
c) Ulnar artery
d) Femoral artery
20. The valve between the right ventricle and the pulmonary artery is the:
a) Tricuspid valve
b) Mitral valve
c) Aortic valve
d) Pulmonic valve ✓
Section 2: Electrocardiography (ECG) (20 Questions)
21. The normal duration of a QRS complex is:
a) < 0.12 seconds ✓
b) 0.12 - 0.20 seconds
c) 0.20 - 0.30 seconds
d) Up to 0.40 seconds
22. A heart rate calculated by counting the number of large boxes between two R waves and
dividing into 300 is using which method?
a) 1500 Method
b) 300 Method ✓
c) 6-Second Method
d) Triplicate Method
23. The lead that provides the best view of the inferior wall of the left ventricle is:
a) I and aVL
b) V1 and V2
c) II, III, and aVF ✓
d) V5 and V6
24. First-degree AV block is characterized by a:
a) Widened QRS complex
b) Progressive PR lengthening then a dropped QRS
c) Constant PR interval > 0.20 seconds ✓
d) No relationship between P waves and QRS complexes
CONCEPT REVIEW & PRACTICE MATERIALS (LATEST
EDITION)
Section 1: Anatomy & Physiology (20 Questions)
1. The "pacemaker" of the heart is the:
a) Atrioventricular node
b) Bundle of His
c) Sinoatrial node ✓
d) Purkinje fibers
2. The coronary artery that supplies blood to the right ventricle and the inferior wall of the
left ventricle is the:
a) Left Anterior Descending (LAD)
b) Circumflex Artery (LCx)
c) Right Coronary Artery (RCA) ✓
d) Left Main Coronary Artery
3. The mitral valve is located between the:
a) Right atrium and right ventricle
b) Left atrium and left ventricle ✓
c) Right ventricle and pulmonary artery
d) Left ventricle and aorta
4. Cardiac output is calculated as:
a) Heart Rate x Blood Pressure
b) Stroke Volume x Total Peripheral Resistance
c) Heart Rate x Stroke Volume ✓
d) Preload x Afterload
5. The phase of the cardiac cycle where ventricular filling occurs is:
a) Systole
b) Diastole ✓
c) Isovolumetric contraction
d) Ejection
6. The primary artery used for arterial access in a left heart catheterization is most commonly
the:
,a) Brachial artery
b) Femoral artery ✓
c) Radial artery
d) Ulnar artery
7. The vessel that returns oxygenated blood from the lungs to the left atrium is the:
a) Pulmonary artery
b) Pulmonary vein ✓
c) Aorta
d) Superior vena cava
8. The Frank-Starling law states that:
a) Heart rate is inversely proportional to blood pressure.
b) The more the heart fills during diastole, the greater the force of contraction during systole. ✓
c) Coronary perfusion occurs primarily during systole.
d) Electrical conduction velocity is constant in healthy myocardium.
9. The vessel that is most often used as a conduit for coronary artery bypass grafting (CABG) is
the:
a) Femoral vein
b) Internal mammary artery ✓
c) Saphenous vein
d) Subclavian artery
10. The normal pacemaker of the heart (SA node) typically depolarizes at a rate of:
a) 20-40 bpm
b) 40-60 bpm
c) 60-100 bpm ✓
d) 100-150 bpm
11. The QRS complex on an ECG represents:
a) Atrial depolarization
b) Atrial repolarization
c) Ventricular depolarization ✓
d) Ventricular repolarization
12. The "dicrotic notch" on an arterial pressure waveform is caused by:
a) Atrial contraction
b) Closure of the aortic valve ✓
,c) Opening of the mitral valve
d) Rapid ventricular filling
13. The vessel that supplies the posterior descending artery (PDA) in a "right-dominant"
coronary system is the:
a) Left Anterior Descending (LAD)
b) Circumflex Artery (LCx)
c) Right Coronary Artery (RCA) ✓
d) Obtuse Marginal
14. The primary determinant of myocardial oxygen demand is:
a) Heart rate ✓
b) Systemic vascular resistance
c) Blood volume
d) Pulmonary capillary wedge pressure
15. Coronary artery perfusion to the left ventricle occurs mainly during:
a) Systole
b) Diastole ✓
c) Atrial contraction
d) The entire cardiac cycle equally
16. The moderator band is a structure found in the:
a) Left atrium
b) Left ventricle
c) Right atrium
d) Right ventricle ✓
17. The innermost layer of the heart wall, which lines the chambers, is the:
a) Epicardium
b) Myocardium
c) Endocardium ✓
d) Pericardium
18. The term "preload" refers to:
a) The pressure the ventricle must overcome to eject blood
b) The degree of stretch of the ventricular myocardium at the end of diastole ✓
c) The resistance in the systemic circulation
d) The force of ventricular contraction
, 19. The artery commonly accessed for a transradial cardiac catheterization is the:
a) Brachial artery
b) Radial artery ✓
c) Ulnar artery
d) Femoral artery
20. The valve between the right ventricle and the pulmonary artery is the:
a) Tricuspid valve
b) Mitral valve
c) Aortic valve
d) Pulmonic valve ✓
Section 2: Electrocardiography (ECG) (20 Questions)
21. The normal duration of a QRS complex is:
a) < 0.12 seconds ✓
b) 0.12 - 0.20 seconds
c) 0.20 - 0.30 seconds
d) Up to 0.40 seconds
22. A heart rate calculated by counting the number of large boxes between two R waves and
dividing into 300 is using which method?
a) 1500 Method
b) 300 Method ✓
c) 6-Second Method
d) Triplicate Method
23. The lead that provides the best view of the inferior wall of the left ventricle is:
a) I and aVL
b) V1 and V2
c) II, III, and aVF ✓
d) V5 and V6
24. First-degree AV block is characterized by a:
a) Widened QRS complex
b) Progressive PR lengthening then a dropped QRS
c) Constant PR interval > 0.20 seconds ✓
d) No relationship between P waves and QRS complexes
