HAC Quality Improvement Metrics 2

Question 1

Which statistical tool is used in healthcare quality improvement to distinguish between common cause and special cause variation?

Accepted Answer

Control chart

Answer

Control charts use statistical control limits to differentiate random common cause variation from assignable special cause variation.

Question 2

A hospital's 30-day readmission rate for heart failure patients is 22%. If the national benchmark is 18%, what is the performance gap?

Accepted Answer

4 percentage points

Answer

The performance gap is 22% - 18% = 4 percentage points above the national benchmark.

Question 3

In the PDSA (Plan-Do-Study-Act) cycle, what is the primary purpose of the 'Study' phase?

Accepted Answer

Analyze data to determine if the change produced improvement

Answer

The Study phase involves analyzing data collected during the Do phase to evaluate whether the tested change resulted in the expected improvement.

Question 4

Which metric best captures the overall burden of preventable harm in a hospital setting?

Accepted Answer

Adverse events per 1,000 patient days

Answer

Adverse events per 1,000 patient days is a standardized rate that accounts for patient volume and captures preventable harm burden.

Question 5

What does a Six Sigma process capability level indicate about defect rates?

Accepted Answer

3.4 defects per million opportunities

Answer

Six Sigma represents a process producing no more than 3.4 defects per million opportunities, indicating near-perfect quality.

(HAC) Healthcare Analytics Certification Practice Test