CSC Quality Control & Assurance 4 — Questions and Answers
Question 1: Which organization publishes the Society of Thoracic Surgeons (STS) National Database risk scores used as a quality benchmark for cardiac surgery programs?
- American Heart Association
- Society of Thoracic Surgeons (Correct answer)
- Centers for Medicare & Medicaid Services
- The Joint Commission
Correct answer: Society of Thoracic Surgeons
The STS publishes and maintains the STS National Database and associated risk models used to benchmark cardiac surgical outcomes nationally.
Question 2: In the context of cardiac catheterization laboratory QA, 'contrast-induced nephropathy' prevention is monitored as which type of measure?
- Outcome measure
- Structural measure
- Process measure (Correct answer)
- Balancing measure
Correct answer: Process measure
Monitoring whether evidence-based hydration and contrast dose-limiting protocols are applied is a process measure that tracks adherence to best practices.
Question 3: A quality dashboard for a heart failure program shows a 30-day readmission rate of 22%. According to current benchmarks, this rate is:
- Well below the national average of approximately 25%
- Above the national average and subject to CMS penalty under the Hospital Readmissions Reduction Program (Correct answer)
- Acceptable only if the patient population has high comorbidity scores
- Below the threshold requiring corrective action under Joint Commission standards
Correct answer: Above the national average and subject to CMS penalty under the Hospital Readmissions Reduction Program
The national 30-day heart failure readmission rate is approximately 20-21%; rates exceeding this benchmark can trigger CMS financial penalties under HRRP.
Question 4: The primary purpose of a peer review program in a cardiac imaging laboratory is to:
- Discipline physicians who make diagnostic errors
- Systematically evaluate interpretive performance to identify learning opportunities and ensure diagnostic accuracy (Correct answer)
- Satisfy billing and coding audit requirements
- Compare individual physician revenue generation
Correct answer: Systematically evaluate interpretive performance to identify learning opportunities and ensure diagnostic accuracy
Peer review programs assess interpretive quality in a non-punitive framework to identify educational needs and improve overall diagnostic accuracy.
Question 5: Which metric is used to assess the diagnostic quality of a nuclear cardiology SPECT study in QA programs?
- Signal-to-noise ratio (SNR)
- Summed stress score (SSS)
- Count statistics and uniformity of the gamma camera (Correct answer)
- Left ventricular ejection fraction accuracy
Correct answer: Count statistics and uniformity of the gamma camera
Gamma camera quality control includes daily assessment of count statistics, uniformity, center of rotation, and spatial resolution to ensure image quality.
Question 6: In a performance improvement project for anticoagulation management in atrial fibrillation, which measure would be considered a 'process measure'?
- Stroke rate in anticoagulated AF patients
- Percentage of eligible AF patients on appropriate anticoagulation therapy (Correct answer)
- 30-day mortality following AF-related hospitalization
- Cost per patient-day of anticoagulation therapy
Correct answer: Percentage of eligible AF patients on appropriate anticoagulation therapy
The percentage of eligible patients receiving guideline-recommended anticoagulation is a process measure tracking adherence to evidence-based practice.
Question 7: Which of the following quality improvement frameworks uses a 'voice of the customer' (VOC) approach to define quality from the patient's perspective?
- Lean
- Six Sigma (Correct answer)
- FMEA
- Root cause analysis
Correct answer: Six Sigma
Six Sigma explicitly incorporates the 'voice of the customer' to define critical-to-quality characteristics and align improvement efforts with patient needs.
CSC Quality Control & Assurance 4
Which organization publishes the Society of Thoracic Surgeons (STS) National Database risk scores used as a quality benchmark for cardiac surgery programs?