Certified Professional in Healthcare Quality Examination: Advanced Mastery
in Quality Improvement, Patient Safety, Regulatory Compliance, Risk
Management, and High-Reliability Healthcare Systems
Target Audience: Experienced healthcare quality professionals, CPHQ candidates
Difficulty: Mixed (60% Advanced / 40% Hard)
Format: Single correct answer (A, B, C, or D) with rationale
Domain 1: Quality Improvement (QI) – Models, Tools, and Methods (Questions 1–40)
1. A hospital’s cardiac surgery mortality rate has exceeded expected benchmarks for two consecutive quarters.
Which QI model is MOST appropriate for multidisciplinary root cause analysis?
A) FOCUS-PDSA
B) Lean Six Sigma DMAIC
C) Rapid Cycle Change
D) Balanced Scorecard
Correct Answer: B
Rationale: DMAIC (Define, Measure, Analyze, Improve, Control) is ideal for analyzing and reducing
defects (mortality) in high-risk processes with existing data.
2. A QI team displays data on a run chart with a shift of 7 consecutive points below the median. This indicates:
A) Common cause variation only
B) Special cause variation requiring investigation
C) Inadequate data granularity
D) Normal statistical noise
Correct Answer: B
Rationale: A shift of ≥7 points above or below the median is a Nelson rule signal for special cause
variation, warranting investigation.
3. Which of the following tools is BEST suited for identifying the most frequent cause of medication delays from a list
of 20 possible causes?
A) Pareto chart
B) Affinity diagram
C) Scatter diagram
D) Control chart
Correct Answer: A
*Rationale: Pareto charts rank causes by frequency/cost, applying the 80/20 rule to prioritize vital few contributors.*
4. In a PDSA cycle, the “Study” phase primarily involves:
A) Implementing a change on a small scale
B) Collecting baseline data
C) Analyzing outcome data compared to predictions
D) Spreading the change organization-wide
Correct Answer: C
,Rationale: “Study” analyzes measurement data, compares results to predictions, and identifies
learning before acting.
5. A hospital reduces central line-associated bloodstream infections (CLABSI) from 4.2 to 1.1 per 1000 line-days using
a standardized insertion checklist. Next, they aim to sustain gains. Which tool is MOST appropriate?
A) Kanban
B) Statistical process control (SPC) chart
C) Gantt chart
D) Force field analysis
Correct Answer: B
Rationale: SPC charts monitor process stability over time, detecting special cause variation that
threatens sustainability.
6. Which Lean concept directly targets elimination of “muda” (waste) in a discharge process?
A) Poka-yoke
B) Value stream mapping
C) FMEA
D) Root cause analysis
Correct Answer: B
Rationale: Value stream mapping visualizes all steps (value-added vs. non-value-added) to identify
and eliminate waste.
7. A QI team uses a fishbone diagram and finds 12 potential causes for surgical site infections. The team should NEXT:
A) Implement countermeasures for all 12 causes
B) Use a prioritization matrix or Pareto chart
C) Redesign the entire surgical protocol
D) Submit findings to the IRB
Correct Answer: B
Rationale: After brainstorming causes, prioritization focuses resources on high-impact drivers before
action.
8. Which of the following is an example of an outcome measure in a pressure ulcer prevention QI project?
A) Percent of patients risk-assessed within 8 hours
B) Compliance with turning schedule every 2 hours
C) Hospital-acquired pressure ulcer rate per 1000 patient-days
D) Number of staff trained on Braden Scale
Correct Answer: C
Rationale: Outcome measures reflect the end result of care (harm prevented), not process or
structure.
9. A hospital’s readmission rate for heart failure is 24% (national avg 19%). The QI director should FIRST:
A) Implement a post-discharge phone call program
B) Conduct a driver diagram to identify key drivers
C) Report the chief medical officer for poor performance
D) Outsource heart failure management
, Correct Answer: B
Rationale: Driver diagrams break down a high-level aim into primary and secondary drivers before
selecting interventions.
10. A control chart shows a point above the upper control limit. The correct action is:
A) Immediately change the process
B) Investigate for an assignable cause
C) Ignore as common cause variation
D) Adjust the control limits upward
Correct Answer: B
Rationale: Points beyond control limits indicate special cause; investigation is needed before process
change.
11. Which QI tool is most effective for understanding the sequence of steps in an existing preoperative process?
A) Tree diagram
B) Flowchart
C) Interrelationship digraph
D) Radar chart
Correct Answer: B
Rationale: Flowcharts map process steps sequentially, revealing redundancies, delays, and
unintended loops.
12. An interdisciplinary team wants to reduce ED length of stay. They generate ideas: bedside registration, rapid lab
testing, and early consult. Which tool organizes these ideas into themes?
A) Affinity diagram
B) Histogram
C) Run chart
D) SIPOC
Correct Answer: A
Rationale: Affinity diagrams cluster language data into natural groups (e.g., “registration,”
“diagnostics,” “throughput”).
13. A hospital achieves a 50% reduction in falls but the gains disappear after 3 months. The most likely root cause is:
A) Ineffective QI model selection
B) Lack of sustainment plan or statistical process control
C) Excessive staff training
D) Overreliance on balancing measures
Correct Answer: B
Rationale: Without control charts or sustainment tools, processes revert to old behaviors (regression
to mean).
14. A Six Sigma project reports a baseline sigma level of 3.2 and a post-intervention sigma of 4.7. This improvement
corresponds to:
A) Reduced defects by ~50%
B) Reduced defects per million opportunities (DPMO) from ~30,000 to ~1,000
in Quality Improvement, Patient Safety, Regulatory Compliance, Risk
Management, and High-Reliability Healthcare Systems
Target Audience: Experienced healthcare quality professionals, CPHQ candidates
Difficulty: Mixed (60% Advanced / 40% Hard)
Format: Single correct answer (A, B, C, or D) with rationale
Domain 1: Quality Improvement (QI) – Models, Tools, and Methods (Questions 1–40)
1. A hospital’s cardiac surgery mortality rate has exceeded expected benchmarks for two consecutive quarters.
Which QI model is MOST appropriate for multidisciplinary root cause analysis?
A) FOCUS-PDSA
B) Lean Six Sigma DMAIC
C) Rapid Cycle Change
D) Balanced Scorecard
Correct Answer: B
Rationale: DMAIC (Define, Measure, Analyze, Improve, Control) is ideal for analyzing and reducing
defects (mortality) in high-risk processes with existing data.
2. A QI team displays data on a run chart with a shift of 7 consecutive points below the median. This indicates:
A) Common cause variation only
B) Special cause variation requiring investigation
C) Inadequate data granularity
D) Normal statistical noise
Correct Answer: B
Rationale: A shift of ≥7 points above or below the median is a Nelson rule signal for special cause
variation, warranting investigation.
3. Which of the following tools is BEST suited for identifying the most frequent cause of medication delays from a list
of 20 possible causes?
A) Pareto chart
B) Affinity diagram
C) Scatter diagram
D) Control chart
Correct Answer: A
*Rationale: Pareto charts rank causes by frequency/cost, applying the 80/20 rule to prioritize vital few contributors.*
4. In a PDSA cycle, the “Study” phase primarily involves:
A) Implementing a change on a small scale
B) Collecting baseline data
C) Analyzing outcome data compared to predictions
D) Spreading the change organization-wide
Correct Answer: C
,Rationale: “Study” analyzes measurement data, compares results to predictions, and identifies
learning before acting.
5. A hospital reduces central line-associated bloodstream infections (CLABSI) from 4.2 to 1.1 per 1000 line-days using
a standardized insertion checklist. Next, they aim to sustain gains. Which tool is MOST appropriate?
A) Kanban
B) Statistical process control (SPC) chart
C) Gantt chart
D) Force field analysis
Correct Answer: B
Rationale: SPC charts monitor process stability over time, detecting special cause variation that
threatens sustainability.
6. Which Lean concept directly targets elimination of “muda” (waste) in a discharge process?
A) Poka-yoke
B) Value stream mapping
C) FMEA
D) Root cause analysis
Correct Answer: B
Rationale: Value stream mapping visualizes all steps (value-added vs. non-value-added) to identify
and eliminate waste.
7. A QI team uses a fishbone diagram and finds 12 potential causes for surgical site infections. The team should NEXT:
A) Implement countermeasures for all 12 causes
B) Use a prioritization matrix or Pareto chart
C) Redesign the entire surgical protocol
D) Submit findings to the IRB
Correct Answer: B
Rationale: After brainstorming causes, prioritization focuses resources on high-impact drivers before
action.
8. Which of the following is an example of an outcome measure in a pressure ulcer prevention QI project?
A) Percent of patients risk-assessed within 8 hours
B) Compliance with turning schedule every 2 hours
C) Hospital-acquired pressure ulcer rate per 1000 patient-days
D) Number of staff trained on Braden Scale
Correct Answer: C
Rationale: Outcome measures reflect the end result of care (harm prevented), not process or
structure.
9. A hospital’s readmission rate for heart failure is 24% (national avg 19%). The QI director should FIRST:
A) Implement a post-discharge phone call program
B) Conduct a driver diagram to identify key drivers
C) Report the chief medical officer for poor performance
D) Outsource heart failure management
, Correct Answer: B
Rationale: Driver diagrams break down a high-level aim into primary and secondary drivers before
selecting interventions.
10. A control chart shows a point above the upper control limit. The correct action is:
A) Immediately change the process
B) Investigate for an assignable cause
C) Ignore as common cause variation
D) Adjust the control limits upward
Correct Answer: B
Rationale: Points beyond control limits indicate special cause; investigation is needed before process
change.
11. Which QI tool is most effective for understanding the sequence of steps in an existing preoperative process?
A) Tree diagram
B) Flowchart
C) Interrelationship digraph
D) Radar chart
Correct Answer: B
Rationale: Flowcharts map process steps sequentially, revealing redundancies, delays, and
unintended loops.
12. An interdisciplinary team wants to reduce ED length of stay. They generate ideas: bedside registration, rapid lab
testing, and early consult. Which tool organizes these ideas into themes?
A) Affinity diagram
B) Histogram
C) Run chart
D) SIPOC
Correct Answer: A
Rationale: Affinity diagrams cluster language data into natural groups (e.g., “registration,”
“diagnostics,” “throughput”).
13. A hospital achieves a 50% reduction in falls but the gains disappear after 3 months. The most likely root cause is:
A) Ineffective QI model selection
B) Lack of sustainment plan or statistical process control
C) Excessive staff training
D) Overreliance on balancing measures
Correct Answer: B
Rationale: Without control charts or sustainment tools, processes revert to old behaviors (regression
to mean).
14. A Six Sigma project reports a baseline sigma level of 3.2 and a post-intervention sigma of 4.7. This improvement
corresponds to:
A) Reduced defects by ~50%
B) Reduced defects per million opportunities (DPMO) from ~30,000 to ~1,000
