The Peritoneal Equilibration Test (PET) is a specialised assessment for patients undergoing peritoneal dialysis. It measures how efficiently a patient's peritoneal membrane transports waste products and fluid between the blood and dialysis solution.

The results help classify the patient's peritoneal membrane transport characteristics and enable nephrologists to customise the peritoneal dialysis prescription, including dialysis dwell duration, exchange frequency and dialysis solution selection. Regular assessment can help improve dialysis adequacy, fluid management and overall treatment outcomes for patients receiving long-term peritoneal dialysis.