CSC Cheat Sheet 2026

The 30 highest-yield CSC facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. How should an CSC professional respond to a compliance violation? → Report it promptly, investigate the root cause, and implement corrective actions
2. In which clinical scenario is intravascular ultrasound (IVUS) guidance during PCI most strongly supported by evidence to improve outcomes? → Left main coronary artery PCI and complex bifurcation lesions
3. A 72-year-old woman with severe symptomatic aortic stenosis is deemed high surgical risk. Which intervention is most appropriate? → Transcatheter aortic valve replacement (TAVR)
4. Cultural competency in cardiac sonography most directly contributes to: → Improved patient communication, cooperation, and examination quality
5. What is reflective practice in Cardiac Subspecialty Certification Exam professional development? → Systematically examining experiences to gain insight and improve future practice
6. A patient with long QT syndrome type 1 (LQT1) presents after a near-syncopal episode during swimming. What is the most appropriate management? → Initiate beta-blocker therapy and restrict swimming
7. A cardiac rehabilitation program is evaluated using a pre-post design without a control group. What is the main limitation of this design? → It cannot control for regression to the mean and natural disease progression
8. Which hemodynamic value is used to calculate pulmonary vascular resistance (PVR)? → (mPAP – PCWP) / CO
9. Elevated PCWP with normal CO and normal SVR is most consistent with: → Diastolic dysfunction / isolated LV filling abnormality
10. Which of the following drug classes belongs to the vasodilator family? → Beta-blockers, nitrates, calcium channel blockers
11. Mineralocorticoid receptor antagonists (e.g., spironolactone) are added in HFrEF to: → Reduce mortality by blocking aldosterone-mediated cardiac fibrosis
12. Which pharmacologic stress agent is contraindicated in patients with severe reactive airway disease undergoing pharmacologic stress testing? → Adenosine
13. The National Cardiovascular Data Registry (NCDR) CathPCI Registry requires data submission for which primary purpose? → Quality benchmarking and performance improvement
14. Which echocardiographic finding is most consistent with cardiac tamponade physiology? → Right ventricular diastolic collapse and respiratory variation in mitral inflow >25%
15. A 65-year-old presents with new-onset atrial fibrillation and a CHA₂DS₂-VASc score of 3. Which anticoagulation strategy is most appropriate? → Oral anticoagulation with a DOAC or warfarin
16. When the SA node fails to depolarize the atria, what is the condition known as? → Sinus pause
17. Which non-invasive technique uses changes in thoracic electrical impedance to estimate cardiac output? → Impedance cardiography
18. Pulse pressure variation (PPV) >13% during mechanical ventilation suggests: → Fluid responsiveness
19. The EuroSCORE II is primarily designed to predict which outcome in cardiac surgical patients? → In-hospital or 30-day operative mortality
20. Pulmonary capillary wedge pressure (PCWP) is used to estimate pressure in which cardiac chamber? → Left atrium
21. During appraisal of a cardiac surgery RCT, you note the allocation concealment was inadequate. What type of bias does this risk? → Selection bias
22. Which class of antiarrhythmic drug prolongs the QT interval by blocking IKr (rapid delayed rectifier potassium current)? → Class III agents like sotalol
23. In electroanatomic mapping during ventricular tachycardia ablation, voltage mapping primarily identifies: → Areas of low-voltage scar that serve as arrhythmia substrate
24. Which medication has been shown to reduce hospitalizations for heart failure in patients with HFrEF through neprilysin inhibition combined with ARB blockade? → Sacubitril/valsartan (Entresto)
25. In AI-driven clinical decision support for chest pain evaluation, which input combination provides the most accurate early risk stratification? → Integration of high-sensitivity troponin, ECG findings, and structured clinical history
26. Which layer of the heart wall contains the cardiac muscle cells responsible for contraction? → Myocardium
27. Which statement about cardiac MRI in patients with known or suspected myocarditis is MOST accurate? → T2-weighted imaging can detect myocardial edema, reflecting active inflammation
28. Which finding on right heart catheterization is MOST consistent with a large ventricular septal defect (VSD) with left-to-right shunt? → Step-up in oxygen saturation from right atrium to right ventricle
29. A patient with known coronary artery disease is scheduled for elective hip replacement. Preoperative stress testing is MOST indicated when: → The patient has poor functional capacity (<4 METs) and findings would change management
30. Under CMS's Two-Midnight Rule, a patient admitted for cardiac monitoring after a low-risk chest pain evaluation would most appropriately be classified as: → Observation (outpatient), if physician expects less than two overnight stays