Total clearance in PD is determined by combining peritoneal clearance with what factor?

Total clearance in PD is determined by combining peritoneal clearance with what factor?

• A. Urine color
• B. Dialysate color
• C. Fluid intake
• D. Residual renal function

Answer: (D)

In PD, the total clearance of solutes is the sum of what the peritoneal membrane clears and what the kidneys still clear—residual renal function. The peritoneal clearance comes from solute transfer during exchanges across the peritoneal membrane, while residual renal function adds further removal through remaining kidney filtration and urine excretion. Together, they determine the overall rate of solute clearance. Urine color, dialysate color, and fluid intake don’t directly affect clearance calculations, so they don’t contribute to the total.

In PD, the total clearance of solutes is the sum of what the peritoneal membrane clears and what the kidneys still clear—residual renal function. The peritoneal clearance comes from solute transfer during exchanges across the peritoneal membrane, while residual renal function adds further removal through remaining kidney filtration and urine excretion. Together, they determine the overall rate of solute clearance. Urine color, dialysate color, and fluid intake don’t directly affect clearance calculations, so they don’t contribute to the total.