Arterial Blood Gas (ABG) Analyzer
Comprehensive ABG interpretation including pH, PaCO2, HCO3 analysis, anion gap, compensation assessment, and oxygenation evaluation.
mmHg
Arterial CO2. Normal 35-45 mmHg.
mEq/L
Calculated or measured bicarbonate. Normal 22-26.
mmHg
Arterial oxygen. Optional for oxygenation assessment.
decimal
Fraction of inspired oxygen.
mEq/L
For anion gap calculation.
mEq/L
For anion gap calculation.
g/dL
For albumin-corrected anion gap.
Enter ABG values for comprehensive analysis
References
- Arterial Blood Gases - MDCalc — MDCalc (2025)
- Acid-Base Disorders - Merck Manual — Merck Manuals (2025)
Clinical Notes & Warnings
- Always correlate with clinical picture and electrolytes.
- Winters formula applies to metabolic acidosis only.
- Distinguish acute vs chronic respiratory disorders for compensation assessment.
- Albumin correction needed for anion gap in hypoalbuminemic patients.
- ABG alone cannot identify all mixed disorders - use delta gap when AG elevated.
The ABG analyzer combines multiple calculations: pH classification, compensation formulas, anion gap, and A-a gradient. For complete assessment, also calculate delta gap if anion gap is elevated.