CCS Quality Assurance & Standards 2 — Questions and Answers
Question 1: Which ACC/AHA performance measure tracks the percentage of AMI patients discharged on a beta-blocker?
- AMI-1
- AMI-2
- AMI-5 (Correct answer)
- AMI-7
Correct answer: AMI-5
AMI-5 is the ACC/AHA performance measure for beta-blocker therapy prescribed at discharge following acute myocardial infarction.
Question 2: In a cardiac catheterization laboratory quality program, 'door-to-balloon time' is a process measure primarily targeting which patient population?
- Unstable angina patients
- NSTEMI patients requiring angiography within 72 hours
- STEMI patients undergoing primary PCI (Correct answer)
- Elective PCI patients with stable angina
Correct answer: STEMI patients undergoing primary PCI
Door-to-balloon time specifically measures the interval from ED arrival to coronary artery reperfusion in STEMI patients undergoing primary PCI, with a benchmark of ≤90 minutes.
Question 3: A hospital's risk-adjusted mortality rate for CABG exceeds the expected rate by two standard deviations. What is the most appropriate immediate quality improvement action?
- Suspend all elective CABG cases pending external review
- Conduct a structured case-by-case mortality review using a standardized tool (Correct answer)
- Report the outlier status to state health authorities immediately
- Increase the surgical team size to reduce operative time
Correct answer: Conduct a structured case-by-case mortality review using a standardized tool
Structured case-by-case mortality review using a validated tool (e.g., STS M&M review) is the first step to identify modifiable factors before escalating to suspension or external reporting.
Question 4: Which statistical tool is BEST suited for monitoring whether a process (e.g., door-to-balloon time) remains within acceptable control limits over time?
- Pareto chart
- Fishbone diagram
- Statistical process control (SPC) chart (Correct answer)
- Scatter plot
Correct answer: Statistical process control (SPC) chart
An SPC (or control) chart plots process data over time with upper and lower control limits, distinguishing common-cause variation from special-cause variation.
Question 5: Under the Joint Commission's ORYX initiative, cardiovascular programs must submit core measure data primarily to support which goal?
- Reimbursement calculation under Medicare fee-for-service
- Accreditation decision-making based on outcomes performance (Correct answer)
- Mandatory public reporting on Hospital Compare
- FDA device surveillance requirements
Correct answer: Accreditation decision-making based on outcomes performance
The ORYX initiative requires hospitals to submit standardized performance measure data to the Joint Commission as part of the accreditation process.
Question 6: A CCS professional reviewing echo lab quality notices that 12% of studies are rated 'non-diagnostic' due to poor image quality. Which intervention is MOST likely to reduce this rate?
- Purchasing higher-frequency transducers for all studies
- Implementing a real-time image quality feedback protocol during acquisition (Correct answer)
- Restricting non-diagnostic studies to body-habitus outliers
- Reporting non-diagnostic rates only quarterly to reduce alarm fatigue
Correct answer: Implementing a real-time image quality feedback protocol during acquisition
Real-time image quality feedback during acquisition allows sonographers to correct technique immediately, directly reducing non-diagnostic study rates.
Question 7: The Society for Cardiovascular Angiography and Interventions (SCAI) recommends that cath labs track contrast-induced acute kidney injury (CI-AKI) rates as part of quality benchmarking. What creatinine rise defines CI-AKI by the most commonly used criterion?
- ≥0.3 mg/dL or ≥50% increase within 24 hours post-procedure
- ≥0.5 mg/dL or ≥25% increase within 48–72 hours post-procedure (Correct answer)
- ≥1.0 mg/dL increase within 72 hours post-procedure
- Any detectable creatinine rise above baseline within 12 hours
Correct answer: ≥0.5 mg/dL or ≥25% increase within 48–72 hours post-procedure
CI-AKI is most commonly defined as a serum creatinine rise of ≥0.5 mg/dL or ≥25% above baseline within 48–72 hours after contrast administration.
CCS Quality Assurance & Standards 2
Which ACC/AHA performance measure tracks the percentage of AMI patients discharged on a beta-blocker?