Nephrology

Daugirdas Second-Generation Single-Pool Kt/V calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Predialysis blood urea nitrogen

mg/dL

Allowed range: 0.1–500 mg/dL

Postdialysis blood urea nitrogen

mg/dL

Allowed range: 0–500 mg/dL

Hemodialysis treatment duration

Allowed range: 0.1–24 h

Ultrafiltration volume

Allowed range: 0–20 L

Postdialysis body weight

Allowed range: 0.22–1102.31 lb

Result

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Clinical inputs

Predialysis blood urea nitrogen (mg/dL)Accepted range: 0.1 to 500
Postdialysis blood urea nitrogen (mg/dL)Accepted range: 0 to 500
Hemodialysis treatment durationAccepted range: 0.1 to 24
Ultrafiltration volumeAccepted range: 0 to 20
Postdialysis body weight (kg)Accepted range: 0.1 to 500

Primary source

Daugirdas JT. Second generation logarithmic estimates of single-pool variable volume Kt/V: an analysis of error. J Am Soc Nephrol. DOI: 10.1681/ASN.V451205. PMID: 8305648. Scope: quantification of delivered intermittent hemodialysis dose using pre/post BUN, treatment time, ultrafiltration, and postdialysis weight. (1993)

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