Cardiac Surgery Subspecialty Certification (CSC) — Questions and Answers

Question 1: A 49-year-old man undergoes PCI of the RCA with a drug-eluting stent. Two weeks later he requires urgent tooth extraction. What antiplatelet strategy is most appropriate?

Stop P2Y12 inhibitor only and continue aspirin
Continue both aspirin and P2Y12 inhibitor throughout the dental procedure (Correct answer)
Defer extraction until 12 months of DAPT is complete
Stop both aspirin and P2Y12 inhibitor 5 days before procedure

Correct answer: Continue both aspirin and P2Y12 inhibitor throughout the dental procedure

Within 3–6 months of DES implantation, DAPT should not be interrupted for minor surgical procedures; continuing both agents during tooth extraction is acceptable.

Question 2: A normal cardiac output in a resting adult is approximately:

1–2 L/min
10–12 L/min
4–8 L/min (Correct answer)
2–3 L/min

Correct answer: 4–8 L/min

Normal resting cardiac output ranges from 4 to 8 L/min, representing the volume of blood the heart pumps per minute.

Question 3: A patient with known coronary artery disease is scheduled for elective hip replacement. Preoperative stress testing is MOST indicated when:

The patient has well-controlled hypertension
The patient has poor functional capacity (<4 METs) and findings would change management (Correct answer)
Any patient with known CAD regardless of functional status
The patient is taking beta-blockers

Correct answer: The patient has poor functional capacity (<4 METs) and findings would change management

ACC/AHA guidelines recommend preoperative stress testing only when the patient has poor functional capacity AND the results would change perioperative management or revascularization strategy.

Question 4: In cardiac MRI, which sequence is considered the gold standard for assessing myocardial viability?

T2-weighted short tau inversion recovery (STIR)
First-pass myocardial perfusion imaging
Cine steady-state free precession (SSFP)
Late gadolinium enhancement (LGE) (Correct answer)

Correct answer: Late gadolinium enhancement (LGE)

LGE detects gadolinium accumulation in fibrotic or infarcted myocardium, making it the gold standard for viability assessment.

Question 5: What is the consequence of non-compliance for Cardiac Subspecialty Certification Exam professionals?

Just additional paperwork
No significant consequences
Potential fines, license revocation, legal liability, and reputational damage (Correct answer)
Only verbal warnings

Correct answer: Potential fines, license revocation, legal liability, and reputational damage

This is fundamental to Cardiac Subspecialty Certification Exam practice. Potential fines, license revocation, legal liability, and reputational damage represents the professional standard for regulatory in the CSC certification framework.

Question 6: During cardiac resynchronization therapy (CRT) optimization, which parameter adjustment has the strongest evidence for improving clinical outcomes?

AV delay optimization using echocardiographic or device-based methods (Correct answer)
Upper rate limit programming to prevent mode switching
Rate response sensitivity based on accelerometer thresholds
Shock energy titration based on defibrillation threshold testing

Correct answer: AV delay optimization using echocardiographic or device-based methods

Optimizing the AV delay maximizes ventricular filling time and interventricular synchrony, improving cardiac output and CRT response.

Question 7: How should an CSC professional handle a situation outside their scope of competency?

Recognize limitations and refer to or consult with appropriate specialists (Correct answer)
Ignore the situation
Decline all unfamiliar work
Attempt it anyway

Correct answer: Recognize limitations and refer to or consult with appropriate specialists

This is fundamental to Cardiac Subspecialty Certification Exam practice. Recognize limitations and refer to or consult with appropriate specialists represents the professional standard for professional standards in the CSC certification framework.

Question 8: A cardiac imaging technologist discovers that the department's echocardiography machine has not undergone its scheduled preventive maintenance. The most appropriate action is to:

Continue scanning since the machine appears to be functioning normally
Document the issue in personal notes but continue routine operations
Report the maintenance gap to the appropriate biomedical engineering or supervisory staff (Correct answer)
Perform the maintenance independently using the manufacturer manual

Correct answer: Report the maintenance gap to the appropriate biomedical engineering or supervisory staff

Equipment maintenance is a safety and quality issue that must be escalated to biomedical engineering or supervisors who have authority to act on it.

Question 9: In Six Sigma quality methodology, 'DMAIC' refers to:

Detect-Monitor-Audit-Implement-Check
Define-Measure-Analyze-Improve-Control (Correct answer)
Design-Map-Assess-Integrate-Close
Diagnose-Modify-Apply-Inspect-Confirm

Correct answer: Define-Measure-Analyze-Improve-Control

DMAIC (Define-Measure-Analyze-Improve-Control) is the structured problem-solving roadmap used in Six Sigma improvement projects.

Question 10: A new cardiac sonographer is uncertain about the correct measurement technique for tricuspid annular plane systolic excursion (TAPSE). The most professionally appropriate response is to:

Consult ASE guidelines and seek guidance from a senior colleague or supervisor (Correct answer)
Copy the TAPSE value from the patient's prior study
Estimate the value based on the general appearance of the right ventricle
Omit the measurement from the report without explanation

Correct answer: Consult ASE guidelines and seek guidance from a senior colleague or supervisor

Consulting authoritative guidelines and experienced colleagues when uncertain is the hallmark of professional competency and patient safety.

Question 11: A patient with acute ST-elevation myocardial infarction (STEMI) presents 2 hours after symptom onset. The cath lab is available. What is the preferred reperfusion strategy?

Primary PCI within 90 minutes of first medical contact (Correct answer)
Conservative management with anticoagulation alone
Emergency CABG
Fibrinolytic therapy followed by angiography in 3–24 hours

Correct answer: Primary PCI within 90 minutes of first medical contact

Primary PCI is the preferred reperfusion strategy for STEMI when door-to-balloon time can be achieved within 90 minutes of first medical contact.

Question 12: A 72-year-old man with DM and CKD (eGFR 28) presents for elective PCI. He is on metformin. How should his metformin be managed peri-procedurally?

Continue metformin without change
Switch permanently to insulin before the procedure
Hold metformin 48 hours before contrast and restart only after reassessing renal function (Correct answer)
Increase metformin dose to prevent contrast nephropathy

Correct answer: Hold metformin 48 hours before contrast and restart only after reassessing renal function

Metformin should be withheld 48 hours before contrast administration and restarted only after confirming stable renal function due to risk of lactic acidosis.

Question 13: The CMS Appropriate Use Criteria program requires that ordering clinicians consult a qualified Clinical Decision Support Mechanism (CDSM). Which exception would exempt a cardiologist from this requirement?

The facility is a Critical Access Hospital
The cardiologist is also the interpreting physician
The patient is Medicare Advantage, not traditional Medicare
The procedure is ordered during an emergency or inpatient stay (Correct answer)

Correct answer: The procedure is ordered during an emergency or inpatient stay

CMS exempts AUC consultation requirements for patients in emergency situations, inpatient settings, or those receiving urgent care, where real-time decision support is impractical.

Question 14: The FDA's Breakthrough Device Designation, as applied to a novel cardiac monitoring wearable, is intended to:

Grant permanent marketing approval before clinical data is available
Expedite the development and review process for serious conditions (Correct answer)
Automatically approve the device without standard trials
Exempt the device from post-market surveillance requirements

Correct answer: Expedite the development and review process for serious conditions

Breakthrough Device Designation expedites development, assessment, and review while maintaining the FDA's standard for safety and effectiveness evidence.

Question 15: In cardiac MRI, late gadolinium enhancement (LGE) identifies:

Areas of active inflammation only
Valvular regurgitation volumes
Myocardial fibrosis or scar tissue (Correct answer)
Normal myocardial perfusion

Correct answer: Myocardial fibrosis or scar tissue

LGE in cardiac MRI reflects areas where gadolinium accumulates due to expanded extracellular space from fibrosis or necrosis, identifying myocardial scar.

Question 16: Which structure prevents backflow of blood from the aorta into the left ventricle?

Pulmonic valve
Aortic valve (Correct answer)
Mitral valve
Tricuspid valve

Correct answer: Aortic valve

The aortic valve prevents backflow from the aorta into the left ventricle during diastole by closing when aortic pressure exceeds ventricular pressure.

Question 17: A patient with dilated cardiomyopathy, LVEF 30%, NYHA Class II symptoms, and LBBB with QRS duration of 155 ms is on optimal medical therapy. Which risk-reducing intervention is MOST indicated?

Implantable cardioverter-defibrillator (ICD) alone
Urgent cardiac transplant evaluation
Cardiac resynchronization therapy with defibrillator (CRT-D) (Correct answer)
Catheter ablation of the left bundle branch

Correct answer: Cardiac resynchronization therapy with defibrillator (CRT-D)

CRT-D is a Class I indication in patients with LVEF ≤35%, NYHA Class II-III symptoms, and LBBB with QRS ≥150 ms on GDMT, providing both mortality benefit and resynchronization.

Question 18: Preload is best defined as:

Ventricular wall tension during contraction
End-diastolic volume or ventricular filling pressure (Correct answer)
Heart rate times stroke volume
Resistance against which the ventricle ejects blood

Correct answer: End-diastolic volume or ventricular filling pressure

Preload refers to the ventricular end-diastolic volume (or pressure), representing the stretch on myocardial fibers before contraction.

Question 19: A cardiologist receives a request from a pharmaceutical company to present at a symposium and suspects potential conflicts of interest may affect their objectivity. What is the most professionally appropriate action?

Decline all industry-sponsored speaking engagements to maintain complete objectivity
Have a colleague present on their behalf while retaining the honorarium
Disclose the relationship transparently to the audience and ensure content is evidence-based (Correct answer)
Accept the invitation only if the drug being promoted is one they already prescribe

Correct answer: Disclose the relationship transparently to the audience and ensure content is evidence-based

ACC/AHA guidelines support transparency through full disclosure of conflicts of interest while ensuring presentations remain evidence-based.

Question 20: Pulse pressure variation (PPV) >13% during mechanical ventilation suggests:

Fluid responsiveness (Correct answer)
Aortic stenosis
Volume overload
Pulmonary hypertension

Correct answer: Fluid responsiveness

PPV >13% in mechanically ventilated patients with sinus rhythm indicates significant preload dependence and predicts that the patient will respond to fluid administration with increased cardiac output.

Question 21: Which antiarrhythmic drug is contraindicated in patients with Wolff-Parkinson-White (WPW) syndrome presenting with atrial fibrillation?

Procainamide
Adenosine
Amiodarone
Digoxin (Correct answer)

Correct answer: Digoxin

Digoxin (and other AV nodal blockers like verapamil and adenosine) can accelerate conduction through the accessory pathway in WPW, potentially precipitating ventricular fibrillation.

Question 22: Under HIPAA's Minimum Necessary Standard, a cardiologist sharing a patient's echocardiogram results with a referring physician should:

Share only the echo report relevant to the referral question (Correct answer)
Share the complete medical record to ensure context
Obtain written authorization before any sharing
De-identify all data before transmission

Correct answer: Share only the echo report relevant to the referral question

HIPAA's Minimum Necessary Standard requires that only the information reasonably necessary to accomplish the intended purpose be disclosed in treatment communications.

Question 23: In a cardiac catheterization laboratory, the PDSA cycle stands for:

Prepare-Deploy-Sustain-Audit
Plan-Do-Study-Act (Correct answer)
Process-Design-Standardize-Analyze
Prioritize-Define-Solve-Assess

Correct answer: Plan-Do-Study-Act

PDSA (Plan-Do-Study-Act) is a foundational quality improvement framework used to test and implement changes iteratively.

Question 24: A 65-year-old presents with new-onset atrial fibrillation and a CHA₂DS₂-VASc score of 3. Which anticoagulation strategy is most appropriate?

Dual antiplatelet therapy with aspirin and clopidogrel
No anticoagulation needed below score of 4
Aspirin 81 mg daily
Oral anticoagulation with a DOAC or warfarin (Correct answer)

Correct answer: Oral anticoagulation with a DOAC or warfarin

A CHA₂DS₂-VASc score ≥2 in men (≥3 in women) warrants oral anticoagulation to reduce stroke risk in AF.

Question 25: Which medication is CONTRAINDICATED in a patient with severe aortic stenosis presenting with acute pulmonary edema?

IV nitroglycerin (Correct answer)
IV morphine sulfate
IV furosemide
Supplemental oxygen

Correct answer: IV nitroglycerin

Nitroglycerin causes preload and afterload reduction; in severe AS, reducing preload can precipitate severe hypotension as fixed obstruction limits compensatory cardiac output increase.

Question 26: A fractional flow reserve (FFR) value of 0.75 across a coronary lesion indicates:

A non-significant lesion where medical therapy alone is preferred
Normal hyperemic coronary flow with no pressure gradient
A hemodynamically significant lesion where revascularization is likely beneficial (Correct answer)
A borderline finding requiring repeat measurement on a different day

Correct answer: A hemodynamically significant lesion where revascularization is likely beneficial

FFR ≤0.80 defines hemodynamic significance; a value of 0.75 is clearly below the threshold, indicating revascularization is likely to reduce ischemia and improve outcomes.

Question 27: Which layer of the heart wall contains the cardiac muscle cells responsible for contraction?

Endocardium
Pericardium
Epicardium
Myocardium (Correct answer)

Correct answer: Myocardium

The myocardium is the middle muscular layer of the heart wall and is responsible for the contractile force of each heartbeat.

Question 28: A cardiac rehabilitation program is evaluated using a pre-post design without a control group. What is the main limitation of this design?

It is unable to establish temporal sequence
It requires blinding of participants
It cannot control for regression to the mean and natural disease progression (Correct answer)
It cannot measure continuous outcomes

Correct answer: It cannot control for regression to the mean and natural disease progression

Without a control group, improvements may reflect natural disease progression or regression to the mean rather than the intervention's effect.

Question 29: A 68-year-old with chronic kidney disease and new-onset atrial fibrillation requires anticoagulation. His CrCl is 28 mL/min. Which DOAC requires the most significant dose adjustment?

Dabigatran (Correct answer)
Rivaroxaban
Apixaban
Edoxaban

Correct answer: Dabigatran

Dabigatran is 80% renally cleared and is contraindicated when CrCl <30 mL/min (FDA) or <15 mL/min (European guidelines), making renal function the critical determinant of dosing.

Question 30: Frank-Starling law states that increased ventricular preload leads to:

Unchanged stroke volume regardless of filling
Increased stroke volume up to an optimal point (Correct answer)
Decreased stroke volume due to overstretching
Decreased heart rate to compensate

Correct answer: Increased stroke volume up to an optimal point

The Frank-Starling mechanism describes that increased end-diastolic volume (preload) increases myofilament stretch and cross-bridge formation, augmenting stroke volume up to an optimal filling pressure.

Cardiac Surgery Subspecialty Certification (CSC)

The CSC certification, administered by AACN, validates the expertise of registered nurses who provide direct care to acutely and critically ill adult cardiac surgery patients within the first 48 hours post-operatively.

Questions

120 min

Time Limit

73%

To Pass

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