Nephrology · ICU and Critical Care · Internal Medicine

Serum Bicarbonate Deficit calculator

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

Clinical inputs

Body weight

Allowed range: 22.05–551.16 lb

Measured serum bicarbonate

mmol/L

Allowed range: 1–45 mmol/L

Target serum bicarbonate

mmol/L

Allowed range: 10–30 mmol/L

Result

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Clinical inputs

Body weight (kg)Accepted range: 10 to 250
Measured serum bicarbonate (mmol/L)Accepted range: 1 to 45
Target serum bicarbonate (mmol/L)Accepted range: 10 to 30

Primary source

Adrogué HJ, Madias NE. Management of life-threatening acid-base disorders (first of two parts). N Engl J Med. DOI: 10.1056/NEJM199801013380106. PMID: 9414329. Scope: bicarbonate deficit (mEq) ≈ 0.5 × body weight (kg) × (target bicarbonate − measured bicarbonate) for metabolic acidosis correction planning. (1998)

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