Online ABG Calculator

Professional ABG calculator for arterial blood gas analysis and interpretation

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About This Tool

This comprehensive ABG calculator helps medical professionals interpret arterial blood gas results. Enter pH, PaCO2, HCO3, Na, Cl, and Albumin values to calculate anion gap, delta gap, and determine acid-base disorders including metabolic/respiratory acidosis/alkalosis with compensation status. The tool provides detailed interpretation with clinical guidance.

Save your calculation history with a free account

How to Use

Enter arterial blood gas values (pH, PaCO2, HCO
Optionally enter electrolyte values (Na, Cl, Albumin) for anion gap calculation
Click 'Calculate ABG' button
View detailed interpretation including primary disorder, compensation status, anion gap, and delta gap
Use 'Reset' button to clear all fields

Frequently Asked Questions

Find Quick Answers

What is an ABG calculator used for?

An ABG calculator helps interpret arterial blood gas results to diagnose acid-base disorders like metabolic acidosis, respiratory alkalosis, and determine compensation status.

What values do I need to enter?

Minimum required: pH, PaCO2, and HCO3. For anion gap calculation, also enter Sodium (Na), Chloride (Cl), and Albumin values.

How accurate is this calculator?

This calculator uses standard medical formulas for ABG interpretation including Winter's formula for compensation and anion gap calculation. It's designed for educational and clinical reference purposes.

What does delta gap indicate?

Delta gap helps identify mixed acid-base disorders by comparing the change in anion gap to the change in bicarbonate.

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