Kt/V Calculator (Daugirdas)

Your details

Choose the unit your laboratory reports for blood urea nitrogen.
Blood urea nitrogen drawn immediately before the dialysis session starts.
mg/dL
Blood urea nitrogen drawn at the end of the dialysis session.
mg/dL
Effective dialysis time, in hours. A typical thrice-weekly session runs 3.5 to 4.5 hours.
hours
Total fluid removed from the patient during the session, in litres.
L
Patient body weight measured immediately after the session ends, in kilograms.
kg
Kt/VAdequate
1.42

Dialysis dose - target >= 1.2 for thrice-weekly hemodialysis

Urea Reduction Ratio (URR)70%
BUN ratio (R)0.3
1.42 Kt/V
Inadequate<1Borderline1-1.2Adequate1.2-1.8Excellent1.8+

Kt/V 1.42: this session delivered an adequate dialysis dose.

  • Kt/V of 1.42 meets the KDOQI minimum of 1.2 for thrice-weekly hemodialysis.
  • URR of 70.0% meets the target of at least 65%, a consistent double-check of dialysis adequacy.
  • Kt/V should be measured at least monthly and after any change in prescription, access, or dialyzer type.

Next stepContinue the current prescription. Re-measure Kt/V monthly per KDOQI guidelines and after any prescription change.

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