NAHQ Updated CPHQ Exam Questions and Answers by peggy

Detailed Explanation:

Benchmarking involves comparing practices and outcomes with similarorganizations to identify areas for improvement.

Option B: Benchmarking

Benchmarking provides standards or comparisons that help teams identify best practices and improvement areas.

Option A:

Outcome measurement assesses results but does not compare across facilities.

To decrease the length of stay for inpatients on a surgical unit, measuring delays between steps in the patient care process is crucial. These delays often represent non-value-added time that can be reduced or eliminated to streamline patient flow and reduce overall length of stay. Identifying and addressing these inefficiencies can lead to more timely care and quicker discharges.

Number of services provided (A): This measures volume, not process efficiency.

Turnaround time for diagnostic test results (B): This is important but only one component of potential delays.

Nursing productivity (D): While important, it does not directly address process inefficiencies related to length of stay.

References

NAHQ Body of Knowledge: Lean Principles and Process Optimization

NAHQ CPHQ Exam Preparation Materials: Reducing Length of Stay through Process Improvement

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Defining the problem in patient identification safety events requires identifying the most frequent or impactful issues to focus improvement efforts effectively.

Option A (Review relevant policies and procedures): Reviewing policies is a later step to ensure alignment with best practices but does not directly define the problem or prioritize issues based on data.

Option B (Trend data with a control chart): Control charts monitor process stability over time, useful for tracking trends but not for initially defining the specific issues causing patient identification errors.

Option C (Use a Pareto chart to identify key issues): This is the correct answer. NAHQ CPHQ study materials advocate for Pareto charts to apply the 80/20 rule, identifying the few critical issues (e.g., wristband errors, miscommunication) responsible for most patient identification safety events. This focuses the action plan on high-impact areas.

Option D (Create a value stream map): Value stream mapping is a Lean tool for visualizing process flow, useful for analyzing workflows but less effective for initially defining the problem compared to prioritizing issues with a Pareto chart.

Understanding the Control Chart ComponentsThis control chart shows the median delay over time (by week), with control limits (UCL - Upper Control Limit, LCL - Lower Control Limit) and a center line (CL) indicating the process average before the intervention. Control charts like this one are used to determine whether an intervention has led to a significant change in process performance.

Analyzing the Data Before and After the Intervention

From weeks 1 to 19, before theintervention, the process appears to fluctuate around the control limits, with several points near the upper control limit, indicating higher variation and a generally stable process around a higher median delay.

After week 20, following the intervention, the data points show a clear shift downward, consistently staying below the previous control line (CL). The process median delay has notably reduced, and all data points fall within a new, lower range.

Conclusion Based on the Control Chart

The consistent reduction in median delay and the clustering of data points below the previous center line indicate a shift in performance rather than mere random variation. This type of change, sustained over multiple weeks, strongly suggests that the intervention had a substantial impact on reducing the delay.

While there may also be a decrease in variation, the primary visible effect is a shift in performance toward lower median delay values.

Rationale for Selecting Answer BThe correct answer is B. The intervention resulted in a shift in performance, as the chart shows a distinct change in the process level post-intervention, indicating an improvement.