Free

Details

  • Released
  • Updated
  • June 22, 2014
  • July 7, 2025

Features

ABG Expert screenshot #1 for iPhone
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About

This medical tool provides accurate and flexible acid-base analysis for healthcare professionals. It offers detailed explanations, customizable ranges, and advanced features like anion gap correction and A-a gradient adjustments for various patient conditions and locations.

Validated accuracy with real-world testing
Plausibility checks for physiologically impossible data
Automatic anion gap correction with albumin
Detailed explanations with equations
Separate or combined analysis of ABG, anion gap, A-a gradient
Customizable normal ranges for anion gap and delta gap
Age and barometric pressure adjustments for A-a gradient
Support for SI and non-SI units
Color-coded results and differential diagnoses
Adjustments for chronic respiratory conditions
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What's New in ABG Expert

3.4

July 7, 2025

Minor UI improvements.

User reviews

Amazing ABG app

I'm an anesthesia resident and love this app. It is easy to use and calculates the things I want to know while providing spot on interpretations as well. I highly recommend to anyone who is learning to interpret blood gases or uses them frequently. Great for anesthesia and critical care!

Great App!

You know, I was skeptical about this app... But being a simple minded orthopedic resident who really doesn't understand such complex biochemistry this app saved my skin while on the trauma ICU rotation. I used it daily. I can also use this app when I'm down in the ER doing a consult and don't want to have to admit an old patient with maybe one or two medical problems to my service... I just punch in the numbers it asks for and then BAM- Medicine admit!
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BEST ABG APP!!!!!!!!!!

This is by far the best ABG application I've used. The detail in the programming and the user friendly nature of the app are superb. And for the price this is one of the best apps I've ever purchased. The designer is truly superb.

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FAQ

What is ABG Expert used for?

ABG Expert is a medical tool designed for accurate and flexible acid-base analysis. It helps healthcare professionals interpret arterial blood gas results, calculate anion gaps, and analyze A-a gradients with detailed explanations and customizable parameters.

Who developed ABG Expert?

ABG Expert was designed and tested by practicing physicians and is developed by Brian Dale Vander Werf MD Inc. It aims to provide unparalleled accuracy and power while remaining intuitive for medical professionals.

Is ABG Expert accurate?

Yes, ABG Expert has been validated using extensive testing under real-world conditions. It includes plausibility checks for data and uses the Henderson-Hasselbalch equation to ensure internal consistency and accurate calculations.

Can ABG Expert be customized?

ABG Expert offers significant flexibility. You can set normal anion gap ranges based on your institution or patient's baseline, adjust the normal delta gap range, and provide age and barometric pressure to automatically adjust the A-a gradient interpretation.

Does ABG Expert support different units?

Yes, ABG Expert fully supports both SI and non-SI units, making it usable globally. It works effectively in various locations, from Boston to Bangkok.

What additional calculators are included in ABG Expert?

In addition to core acid-base analysis, ABG Expert includes an osmolal gap calculator and a urine anion gap calculator. These tools help refine differential diagnoses further.

What devices is ABG Expert available on?

ABG Expert is optimized for iOS devices running iOS 13 and later. It is compatible with iPhone, iPad, and iPod.

How often is ABG Expert updated?

The latest version of ABG Expert is 3.4, and it was last updated on July 7, 2025. This indicates regular updates to maintain functionality and accuracy.