Analysis of Acid-Base Disorders

According to Stewart's method.

Strong Ions
mmol/L
mmol/L
mmol/L
mmol/L
mmol/L
mmol/L
Weak Acids
g/L
mmol/L
Blood Gases
Diagnostic Analysis
Real-time analysis based on the entered data.

Enter Na+, Cl-, pH and PaCO₂ to generate the analysis.

Results

SIDa

-

Norm: 38.0 - 42.0

mEq/L

Atot

-

Norm: 11.0 - 14.0

mEq/L

SIG

-

Norm: 0.0 - 5.0

mEq/L

PaCO₂

-

Norm: 35.0 - 45.0

mmHg

Acid-Base Balance
Estimated acidifying and alkalinizing forces.

Enter the required values to display the visualization.

Gamblegram
Cation-anion balance.

Enter the required values to display the visualization.

Patient report

Concise summary for the patient record.

About / limits

ABG.care v2.0 · 2026 · Last updated: October 29, 2026

ABG.care is a decision-support tool for interpreting acid-base disorders using Stewart’s physicochemical approach. It does not replace clinical assessment, medical prescription, or local protocols.

Limits

  • •Results depend strictly on the entered values, their units, and local reference ranges.
  • •Complex disorders must still be interpreted with the clinical context, treatments, time course, and repeated samples.
  • •Missing or incorrect albumin, phosphate, lactate, or PaCO₂ values can significantly change Atot, SIDe, SIG, and the proposed diagnosis.
    Blood Gas Interpretation & Stewart Acid-Base Calculator | ABG.care