Final answer:
The osmotic agent in PD fluid is glucose, which creates an osmotic pressure gradient for efficient dialysis and waste removal.
Step-by-step explanation:
The osmotic agent in PD (Peritoneal Dialysis) fluid is glucose. PD fluid is used in peritoneal dialysis, a medical procedure that removes waste and excess fluid from the body when the kidneys are no longer able to perform this function. Glucose is used as the osmotic agent in PD fluid because it creates an osmotic pressure gradient that helps to draw waste products and excess fluid out of the body's peritoneal cavity. This process allows for efficient dialysis and the removal of toxins from the body.