Quality Improvement in Healthcare Practice Test

How does the PDSA cycle differ from the traditional PDCA cycle?

PDSA cycles are not iterative and do not test changes.

PDCA cycles are the same as PDSA cycles.

PDSA cycles test a change on a small scale, study results, and learn before acting; PDCA emphasizes the check and act steps.

PDSA cycles emphasize testing a change on a small scale, studying the results to understand what happened and why, and learning before acting. This focused learning step helps teams adjust before widening implementation, reducing risk and guiding the next steps with evidence from the actual data.

In the traditional PDCA cycle, the sequence is Plan-Do-Check-Act, with a strong emphasis on verifying results against the plan (Check) and then acting based on what you found. The difference is that PDSA foregrounds the study/learning phase before deciding what to change next, whereas PDCA centers more on checking outcomes and then acting to adjust. Both are iterative, but PDSA prioritizes rapid, small-scale tests followed by learning before broader action.

PDSA cycles can only be used in manufacturing.