When a patient is critically ill, every movement matters. Doctors need accurate ways to measure how well these patients can move or perform basic physical tasks. A large review of 27 different studies looked at the Chelsea Critical Care Physical Assessment tool, known as CPAx, to see if it works as a reliable measuring stick.
The results show that the CPAx is highly reliable and valid for tracking physical function. It performed well in terms of content validity and showed excellent reliability when different staff members used it to measure patients. The tool also proved feasible to use in clinical settings with small floor and ceiling effects, meaning it can capture a wide range of patient abilities.
While the results are promising, some parts of the data are still early. For example, the evidence for how well the tool tracks changes over time is currently considered very low quality. However, the overall findings suggest that the CPAx is a dependable way to evaluate physical activity in intensive care settings.
