# Graphical Arterial Blood Gas

> Medical app for analyzing arterial blood gases and acid-base status with graphical plots. (iPhone/iPad app by ferrazza.)

- Source: https://appshunter.io/ios/app/graphical-arterial-blood-gas/id506297079 (this page in markdown: same URL + `.md`)
- Developer: [ferrazza](https://appshunter.io/developer/478668311)
- Category: Medical
- Price: $0.99
- Rating: 1.00/5 from 1 App Store ratings · 3 written reviews indexed
- Age rating: 17+
- Requires: iOS 8.0 · 13 MB
- Languages: American English, Italian
- Released: 2012-03-07
- Data updated: 2026-09-10
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/graphical-arterial-blood-gas/id506297079/reviews.md

## What is Graphical Arterial Blood Gas?

Arterial blood gases (ABG) plotting helps you to understand and evaluate patient Gas Exchange and Acid-Base status. 
This is possible by means of an integrated reading of arterial carbon dioxide blood pressure (PaCO2), arterial oxygen blood pressure (PaO2) and pH with two graphs: PaCO2 vs PaO2 plot and PaCO2 vs pH plot. 
• The PaCO2-PaO2 plot allows the assessment of the patient gas exchange status, by means of the computation of the alveolar–arterial oxygen gradient (P(A-a)O2) and P/F ratio. 
• The PaCO2-pH plot is based on the original Schwartz’s nomogram. It gives you immediate information on acid-base status and allows to graphically display the trend of the patients’ multiple evaluations. 
• For more exhaustive information on metabolic disorders, the anion gap (AG) can be calculated with an intuitive visual method.
• Serial evaluations of both Gas Exchange and Acid-Base balances can be saved and are available on a table. 
• You can export data in pdf format and print or send via email the pdf.
• A detailed diagnosis of the Acid-Base disorder is provided according to the Acid-Base balance and Sodium and Chloride values. 
• For each Acid-Base disorder a list of potential causes is provided.
• Your personal evaluations can be saved on a patients list.
• In the settings tab, you can choose the unit of measure for O2 and CO2 partial pressure (i.e., mmHg vs kPa).

## Key features

- Arterial blood gas plotting
- Gas exchange and acid-base status evaluation
- PaCO2 vs PaO2 plot
- PaCO2 vs pH plot
- Anion gap calculation
- Save and export serial evaluations
- Diagnosis of acid-base disorders

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/graphical-arterial-blood-gas/id506297079/reviews.md

### 5/5 — Best App for ABG

*2023-04-04*

Eu uso TODO SANTO DIA. A interface gráfica é maravilhosa. Ainda funciona nos iOS mais recentes. Espero que não descontinuem. Continuem atualizando que eu continuo compartilhando com meus alunos!

### 1/5 — Blah

*2020-03-10*

Not useful. Either doesn’t work or completely useless.

### 5/5 — Very useful For ABG analysis

*2013-04-04*

I compared the results of this app to another ABG app and the results appear to be correct. Seeing the data entry on diagrams helps me better understand the results. This will be useful for learning ABG analysis as well as patient care.

## Frequently asked questions about Graphical Arterial Blood Gas

### What is Graphical Arterial Blood Gas used for?

Graphical Arterial Blood Gas is used to help understand and evaluate a patient's gas exchange and acid-base status through graphical plotting of arterial blood gases (ABG). It aids in assessing PaCO2, PaO2, and pH values.

### What plots does Graphical Arterial Blood Gas offer?

The app provides two main plots: a PaCO2 vs PaO2 plot for assessing gas exchange status and a PaCO2 vs pH plot based on Schwartz's nomogram for immediate acid-base status information.

### Can I calculate the anion gap with Graphical Arterial Blood Gas?

Yes, the app includes an intuitive visual method for calculating the anion gap, providing more exhaustive information on metabolic disorders.

### Does Graphical Arterial Blood Gas allow saving patient data?

Yes, serial evaluations of gas exchange and acid-base balances can be saved and are available on a table. Your personal evaluations can also be saved on a patient list.

### Can I export data from Graphical Arterial Blood Gas?

Yes, you can export your data in PDF format, which can then be printed or sent via email for further analysis or sharing.

### What units of measure can be used in Graphical Arterial Blood Gas?

In the settings tab, you can choose the unit of measure for O2 and CO2 partial pressure, with options typically including mmHg and kPa.

### How much does Graphical Arterial Blood Gas cost?

Graphical Arterial Blood Gas is a paid application, priced at $0.99. This one-time purchase grants access to all its features.

### Does Graphical Arterial Blood Gas have ads?

No, Graphical Arterial Blood Gas does not contain advertisements. As a paid app, it offers an ad-free experience for users.

## Version history (last 5 releases)

### 3.1 — 2020-03-22

Fixed an error causing a crash of the application when selecting the diagnosis and help information.
Improved the graphics of the sliders.

### 3.0 — 2017-10-16

Corrected several bugs that did not permit to utilize the app on iOS 11.
Optimized for screen sizes of iPhone 8 and 8 plus.

### 2.4 — 2014-06-27

Added the ability to choose between alveolar-arterial oxygen difference and arterial-alveolar oxygen ratio in Gas Exchange Table.

### 2.3 — 2013-12-14

Fixed an issue causing unexpected quit of the application in the anion gap computation.

### 2.2 — 2013-11-16

User interface completely redesigned for iOS 7. Corrected some errors occurring in iOS 7.
Now you can select the values of PaCO2, PaO2, FiO2 and pH in a new way by touching the icon in lower-right corner of the graph.

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## More apps by ferrazza

- [Emergency Drugs](https://appshunter.io/ios/app/emergency-drugs/id478666248)
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All apps by ferrazza: https://appshunter.io/developer/478668311

## Related topics

[graphical arterial blood gas](https://appshunter.io/ios/topics/graphical-arterial-blood-gas) · [visual blood gas calc](https://appshunter.io/ios/topics/visual-blood-gas-calc)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*