You're here: Home » Tools » A-a O2 Gradient Calculator

A-a O2 Gradient Calculator

13. Feb, 2012

Alveolar-arterial oxygen gradient

The alveolar-arterial oxygen tension difference (“A-a gradient”) is used in evaluating the causes of hypoxemia.

Enter Your Details
PaO2(partial pressure of arterial O2): mmHg
PaCO2 (partial pressure of arterial CO2): mmHg
Atmospheric Pressure:
Inspired Oxygen Concentration (FiO2): Room Air (21percent)
Other:
Your Results
A-a Gradient mmHg

A-a (O2) = (FiO2%/100) * (Patm – 47 mmHg) – (PaCO2/0.8) – PaO2
(units in mmHg)

Related Articles

  1. Pregnancy Due Date Calculator

  2. Waist to Hip Ratio Calculator

  3. Diabetes Risk Calculator

  4. Corrected Sodium Calculator

  5. Corrected QT Interval (QTc) Calculator

Tools
, , , , ,

No comments yet... Be the first to leave a reply!

Leave a Reply