What are two main metrics used to assess PD adequacy?

What are two main metrics used to assess PD adequacy?

• A. Weekly total Kt/V (urea) and weekly creatinine clearance (including residual function).
• B. Post-dialysis urea reduction ratio and patient weight.
• C. Blood urea nitrogen and creatinine levels only.
• D. Urine output and dialysate glucose exposure.

Answer: (A)

PD adequacy is focused on how much solute is cleared over time, accounting for both the dialysis delivered by the peritoneal membrane and any remaining kidney function. The two main metrics used are weekly total Kt/V (urea) and weekly creatinine clearance, including residual function. Kt/V (urea) measures how much urea is cleared relative to the patient’s total body water over a week, combining peritoneal clearance with any residual renal clearance. Weekly creatinine clearance provides another view of overall small-solute removal and also includes the contribution from residual kidney function. Using both together gives a complete picture of how effectively solutes are being removed in a PD patient, since one metric alone can be influenced by factors like body size or nonsteady states. The other options don’t capture this integrated, weekly clearance assessment: post-dialysis urea reduction ratio is specific to hemodialysis sessions; body weight alone doesn’t quantify clearance; single blood levels of BUN or creatinine don’t reflect weekly clearance; urine output and dialysate glucose exposure address hydration or osmotic aspects rather than overall solute removal.

PD adequacy is focused on how much solute is cleared over time, accounting for both the dialysis delivered by the peritoneal membrane and any remaining kidney function. The two main metrics used are weekly total Kt/V (urea) and weekly creatinine clearance, including residual function. Kt/V (urea) measures how much urea is cleared relative to the patient’s total body water over a week, combining peritoneal clearance with any residual renal clearance. Weekly creatinine clearance provides another view of overall small-solute removal and also includes the contribution from residual kidney function. Using both together gives a complete picture of how effectively solutes are being removed in a PD patient, since one metric alone can be influenced by factors like body size or nonsteady states. The other options don’t capture this integrated, weekly clearance assessment: post-dialysis urea reduction ratio is specific to hemodialysis sessions; body weight alone doesn’t quantify clearance; single blood levels of BUN or creatinine don’t reflect weekly clearance; urine output and dialysate glucose exposure address hydration or osmotic aspects rather than overall solute removal.