What is the minimum target weekly Kt/V urea for PD adequacy?

• A. ≥1.0 per week.
• B. ≥2.5 per week.
• C. ≥3.0 per week.
• D. ≥1.7 per week (total, including residual renal function).

Answer: (D)

In PD adequacy, weekly Kt/V urea measures how much urea is cleared relative to the patient’s total body water over a week. The total clearance comes from two sources: the peritoneal dialysis exchanges and any residual renal function. Because both contribute to removing urea, the target is set for the combined (total) weekly Kt/V, not just PD alone. The standard minimum target is 1.7 per week when including residual renal function. If a patient has little or no residual function, the PD regimen must provide most of that clearance to reach 1.7; with more residual function, less PD clearance is needed. The other options set targets that are either too low or unnecessarily high for a minimum standard.