PRC Quality Control & Process Improvement 3 — Questions and Answers
Question 1: In process improvement for a PRC clinic, a fishbone (Ishikawa) diagram is used to:
- Plot patient outcome scores over time
- Identify potential causes of a quality problem such as inconsistent treatment results (Correct answer)
- Schedule patient appointments more efficiently
- Map the anatomy of postural compensation patterns
Correct answer: Identify potential causes of a quality problem such as inconsistent treatment results
The fishbone diagram is a root cause analysis tool that organizes potential causes of a problem into categories for systematic review.
Question 2: Which metric best reflects the clinical effectiveness of a PRC treatment program at the population level?
- Number of treatment sessions billed per month
- Percentage of patients achieving defined repositioning criteria at discharge (Correct answer)
- Average session duration in minutes
- Number of new patient referrals received
Correct answer: Percentage of patients achieving defined repositioning criteria at discharge
Percentage of patients meeting repositioning criteria at discharge is a direct, clinically meaningful outcome measure for program effectiveness.
Question 3: A PRC clinic implements a new home exercise protocol. To evaluate its impact using a process measure (vs. outcome measure), the clinic should track:
- Patient pain scores at discharge
- Percentage of patients completing home exercises as prescribed each week (Correct answer)
- Change in standing postural alignment from intake to discharge
- Rate of return to sport or work
Correct answer: Percentage of patients completing home exercises as prescribed each week
Process measures capture whether the intervention is being delivered as intended, distinct from outcome measures that capture clinical change.
Question 4: When reviewing a control chart for patient repositioning scores, data points outside the control limits most likely indicate:
- Normal variation in patient outcomes
- A special cause that warrants investigation (Correct answer)
- Seasonal trends in patient volume
- Measurement rounding error
Correct answer: A special cause that warrants investigation
Points outside control limits signal special cause variation, which is non-random and requires investigation to determine the underlying reason.
Question 5: Continuing education requirements in PRC recertification primarily serve which quality function?
- Increasing clinic revenue through advanced service offerings
- Ensuring clinicians maintain current, evidence-based knowledge and skill competency (Correct answer)
- Satisfying hospital credentialing requirements only
- Reducing malpractice insurance premiums
Correct answer: Ensuring clinicians maintain current, evidence-based knowledge and skill competency
Recertification continuing education ensures ongoing competency and alignment with evolving evidence and PRI methodology standards.
Question 6: A PRC clinician documents treatment in non-standardized narrative notes. The primary quality risk this creates is:
- Increased patient satisfaction
- Inability to systematically audit or compare treatment fidelity across patients (Correct answer)
- Faster documentation time
- Better patient rapport
Correct answer: Inability to systematically audit or compare treatment fidelity across patients
Non-standardized documentation makes systematic quality auditing and cross-patient comparison impossible, undermining quality assurance.
Question 7: Which quality improvement model uses five sequential phases — Define, Measure, Analyze, Improve, Control — applicable to PRC clinic workflow optimization?
- PDCA
- Six Sigma DMAIC (Correct answer)
- Lean 5S
- Balanced Scorecard
Correct answer: Six Sigma DMAIC
Six Sigma's DMAIC framework provides a structured, data-driven approach to defining problems, measuring performance, and sustaining improvements.
PRC Quality Control & Process Improvement 3
In process improvement for a PRC clinic, a fishbone (Ishikawa) diagram is used to: