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1
CMC Cardiac Medicine Certification
Questions and Answers (100% Correct
Answers) Already Graded A+
Acute Coronary Syndrome (ACS): any group of clinical symptoms
resulting from acute myocardial ischemia. Ans: begins with the rupture of
atherosclerotic plaque, creating an injured area on the endothelium.
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platelet activation of the coagulation cascade and the formation of a
thrombus over the injured area ensues Ans: restricted blood flow,
cardiac ischemia and chest pain, the most common symptom of ACS.
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ACS is divided into three categories: Ans: unstable angina (USA)
Non ST segment elevation MI (NSTEMI)
ST segment elevation MI (STEMI).
unstable angina (USA) Ans: no rise in cardiac biomarkers. If there is a
decrease in left ventricular function secondary to cardiac ischemia, it
returns to normal after the ischemia has resolved.
Non-STEMI
No evidence of ST elevation. Ans: Cardiac biomarker levels rise but the
levels will not be high enough to render a positive test result. May be left
ventricular dysfunction after NSTEMI resolves
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STEMI Ans: ST elevations will be present in different leads depending on
injury location; a Q wave may be present. CK-MB and troponin are
positive; high risk for left ventricular dysfunction.
Risk factors for ACS include: Ans: CAD, atherosclerotic plaque on the
walls of the arteries; age >55, Male; smoking, obesity, HTN, ETOH,
hypercholesterolemia, sedentary lifestyle; uncontrolled DM
Myocardial ischemia is characterized by Ans: T-wave inversion on an
ECG.
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Infarction is characterized by a Q wave duration of 0.04 seconds or
longer. Ans: The Q wave will also be approximately one-fourth to one-
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third the height of the R wave.
40% to 50% of MIs involve the INFERIOR WALL Ans: In 80% of patients, the
inferior wall is supplied by the RCA via the posterior descending artery
(Right-dominance).
Good prognosis (<10% mortality)
40% to 50% of MIs involve the INFERIOR WALL Ans: In the other 20%, the
posterior descending artery is a branch of the circumflex artery (Left-
dominance).
40% of INFERIOR WALL MIs involve the RIGHT VENTRICLE Ans: worse
outcome
hypotension, bradycardia, heart block, and cardiogenic shock
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Bradycardias, heart blocks and arrhythmias associated with inferior wall
MIs Ans: The right coronary artery perfuses the sinoatrial node and AV
node.
Most common ECG finding with inferior wall MI Ans: ST elevation in II, III
and aVF Reciprocal ST depression in lead aVL.
If right ventricular involvement suspected Ans: Performed a "right-sided
EKG" by reversing the precordial leads to the right side of the chest in a
mirror image of the traditional precordial leads.
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Suspect right ventricular infarction in ALL inferior wall MIs. Do a right-sided
EKG... Ans: ST elevations is V3R-V6R confirms right ventricular MI
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In patients presenting with inferior wall MI, right ventricular infarction is
suggested by the presence of: Ans: ST elevation in V1 (the only lead that
looks directly at the right ventricle).
Plus
ST depression in V2 (= highly specific for RV MI).
The ECG findings in occlusion of circumflex artery or branch from the LAD
artery Ans: ST elevations in leads I and aVL,
Reciprocal changes in V1 and V3.
POSTERIOR wall MI Ans: Occlusion in posterior descending artery — a
branch of the RCA.
May see inferior MI at same time due to shared blood supply.
1
CMC Cardiac Medicine Certification
Questions and Answers (100% Correct
Answers) Already Graded A+
Acute Coronary Syndrome (ACS): any group of clinical symptoms
resulting from acute myocardial ischemia. Ans: begins with the rupture of
atherosclerotic plaque, creating an injured area on the endothelium.
© 2026 Assignment Expert
platelet activation of the coagulation cascade and the formation of a
thrombus over the injured area ensues Ans: restricted blood flow,
cardiac ischemia and chest pain, the most common symptom of ACS.
Guru01 - Stuvia
ACS is divided into three categories: Ans: unstable angina (USA)
Non ST segment elevation MI (NSTEMI)
ST segment elevation MI (STEMI).
unstable angina (USA) Ans: no rise in cardiac biomarkers. If there is a
decrease in left ventricular function secondary to cardiac ischemia, it
returns to normal after the ischemia has resolved.
Non-STEMI
No evidence of ST elevation. Ans: Cardiac biomarker levels rise but the
levels will not be high enough to render a positive test result. May be left
ventricular dysfunction after NSTEMI resolves
,For Expert help and assignment handling,
2
STEMI Ans: ST elevations will be present in different leads depending on
injury location; a Q wave may be present. CK-MB and troponin are
positive; high risk for left ventricular dysfunction.
Risk factors for ACS include: Ans: CAD, atherosclerotic plaque on the
walls of the arteries; age >55, Male; smoking, obesity, HTN, ETOH,
hypercholesterolemia, sedentary lifestyle; uncontrolled DM
Myocardial ischemia is characterized by Ans: T-wave inversion on an
ECG.
© 2026 Assignment Expert
Infarction is characterized by a Q wave duration of 0.04 seconds or
longer. Ans: The Q wave will also be approximately one-fourth to one-
Guru01 - Stuvia
third the height of the R wave.
40% to 50% of MIs involve the INFERIOR WALL Ans: In 80% of patients, the
inferior wall is supplied by the RCA via the posterior descending artery
(Right-dominance).
Good prognosis (<10% mortality)
40% to 50% of MIs involve the INFERIOR WALL Ans: In the other 20%, the
posterior descending artery is a branch of the circumflex artery (Left-
dominance).
40% of INFERIOR WALL MIs involve the RIGHT VENTRICLE Ans: worse
outcome
hypotension, bradycardia, heart block, and cardiogenic shock
, For Expert help and assignment handling,
3
Bradycardias, heart blocks and arrhythmias associated with inferior wall
MIs Ans: The right coronary artery perfuses the sinoatrial node and AV
node.
Most common ECG finding with inferior wall MI Ans: ST elevation in II, III
and aVF Reciprocal ST depression in lead aVL.
If right ventricular involvement suspected Ans: Performed a "right-sided
EKG" by reversing the precordial leads to the right side of the chest in a
mirror image of the traditional precordial leads.
© 2026 Assignment Expert
Suspect right ventricular infarction in ALL inferior wall MIs. Do a right-sided
EKG... Ans: ST elevations is V3R-V6R confirms right ventricular MI
Guru01 - Stuvia
In patients presenting with inferior wall MI, right ventricular infarction is
suggested by the presence of: Ans: ST elevation in V1 (the only lead that
looks directly at the right ventricle).
Plus
ST depression in V2 (= highly specific for RV MI).
The ECG findings in occlusion of circumflex artery or branch from the LAD
artery Ans: ST elevations in leads I and aVL,
Reciprocal changes in V1 and V3.
POSTERIOR wall MI Ans: Occlusion in posterior descending artery — a
branch of the RCA.
May see inferior MI at same time due to shared blood supply.
