What is Kt/V in hemodialysis?

Kt/V is a dimensionless index measuring dialysis adequacy: K (dialyzer clearance in mL/min) x t (time in minutes) / V (urea distribution volume in mL). A single-pool Kt/V >= 1.2 per session is the minimum target.

How is Kt/V calculated?

Daugirdas second-generation formula: Kt/V = -ln(R - 0.008 x t) + (4 - 3.5 x R) x UF/W, where R = post-BUN/pre-BUN, t = session time in hours, UF = ultrafiltration volume in litres, W = post-dialysis weight in kg.

What does inadequate Kt/V mean?

Kt/V < 1.2 suggests inadequate dialysis, associated with higher morbidity and mortality. Corrective measures include prolonging session time, increasing blood flow rate, or using a higher-efficiency dialyzer.

Kt/V Hemodialysis Adequacy Calculator

Calculate Kt/V to assess hemodialysis adequacy. Target ≥1.2 per session per KDOQI guidelines. Uses Daugirdas second-generation formula.

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Frequently Asked Questions

What is Kt/V in hemodialysis?

How is Kt/V calculated?

What does inadequate Kt/V mean?