Acid-base · Strong-ion view

Blood gas · Stewart approach

Decomposes standardized base excess into its six physiologic contributors per the simplified Fencl-Stewart method (Hopper & Haskins 2008). Identifies the share of base deficit attributable to hypoalbuminemia and quantifies unmeasured anion burden: the headline correction the conventional anion gap misses in sick patients.

Blood gas

From analyzer. If 0, estimated from HCO3.

Electrolytes

Leave at 0 to skip that component.

Weak acids (Atot)

If unmeasured, assumed species normal (~4.5 mg/dL).
Awaiting input

Enter pH, PCO₂, HCO₃⁻, Na, Cl, and albumin to compute the Stewart decomposition.