Arterial Blood Gas Interpretation

ABG Calculator & ABG Analyzer

Quickly interpret arterial blood gases.

Enter ABG Values

Understanding ABG Interpretation

Arterial blood gas analysis helps identify primary acid–base disorders (respiratory vs. metabolic), gauge the degree of compensation, and assess oxygenation. This analyzer gives a quick summary; use ABGenius for guided practice and more repetition.

Want a deeper breakdown? Read the ABG Analysis Guide.

Why this ABG calculator is useful

This ABG calculator helps clinicians, students, and respiratory therapists quickly organize acid-base status, compensation, and oxygenation into one readable result.

For deeper learning and repeated case-based training, use ABGenius or read the ABG Analysis Guide.

Common ABG Questions

  • What is a normal ABG? pH 7.35–7.45, PaCO₂ 35–45 mmHg, HCO₃⁻ 22–29 mEq/L.
  • What does PaO₂ measure? Oxygenation status in arterial blood.
  • What is compensation in ABGs? The body’s attempt to normalize pH via respiratory or metabolic mechanisms.
  • How do you interpret ABGs? Determine pH → identify primary disorder → assess compensation → evaluate oxygenation.

Related ABG resources

Go deeper with our ABG Interpretation Step-by-Step Guide , review the ABG Analysis Guide , sharpen your skills with ABGenius , or calculate expected compensation with the Winter’s Formula Calculator.

Need guided practice? Open ABGenius.

How to use this analyzer

Enter the blood gas values, then review the primary disorder, compensation pattern, and oxygenation summary together.

For deeper study, use the ABG Analysis Guide or practice with ABGenius.

Related ABG, VBG, and oxygenation resources

ABG Analysis GuideABGeniusVBGeniusA–a Gradient CalculatorP/F Ratio Explained

Common ABG Questions

What is a normal ABG?

Normal ABG values are pH 7.35–7.45, PaCO₂ 35–45 mmHg, HCO₃⁻ 22–29 mEq/L, and PaO₂ 80–100 mmHg.

How do you interpret an ABG?

Start with pH, then look at PaCO₂ and HCO₃⁻ to identify the primary disorder, assess compensation, and finish by evaluating oxygenation.

What does PaO₂ indicate?

PaO₂ shows oxygenation status in arterial blood and helps classify hypoxemia as mild, moderate, or severe.

What is compensation in ABGs?

Compensation is the body’s attempt to bring pH back toward normal through respiratory or metabolic adjustment.