The peritoneal equilibration test—often
called the PET—measures how much dextrose has been absorbed from a bag of infused dialysis solution and how much urea and creatinine have entered into the solution during a 4-hour dwell. The peritoneal transport rate varies from person to person. People who have a high rate of transport absorb dextrose from the dialysis solution quickly, and they should be given a dialysis schedule that avoids exchanges with a long dwell time because they tend to absorb too much dextrose and dialysis solution from such exchanges.