Disclaimer: This app is an educational reference tool only. It is not a medical device and does not replace clinical judgement, professional training, or institutional protocols. Users should always consult a qualified healthcare professional before making any clinical decision. This app is not intended for use in direct patient care.
ABG Interpreter – Blood Gas Education
ABG Interpreter is a structured educational reference tool designed to help healthcare students and professionals learn and practise the systematic interpretation of arterial blood gas results. The app illustrates the step-by-step analytical framework taught in medical schools and postgraduate training programmes across the UK and internationally — for learning and self-study purposes only.
How it works
Enter example blood gas values and the app illustrates the established interpretive framework for:
pH status — acidaemia, normal range, or alkalaemia
Primary disorder identification — respiratory or metabolic, acidosis or alkalosis
Compensation assessment — using Winter's formula and standard published compensation equations, with illustration of how mixed disorders are recognised
Anion gap calculation — with albumin correction and delta-delta ratio for understanding complex metabolic acidosis
Oxygenation indices — P/F ratio and alveolar-arterial gradient, with severity classification based on published criteria
Educational notes — cause-specific learning notes explaining the principles behind management of each disorder
Disorders covered
Respiratory acidosis · Respiratory alkalosis · Metabolic acidosis (HAGMA and NAGMA) · Metabolic alkalosis · Mixed disorders · Hypoxaemia (mild, moderate, severe, ARDS threshold)
Designed for
Medical students, foundation doctors, nursing students, paramedics, intensivists, and any healthcare professional who wants a structured educational reference for blood gas interpretation and the physiological principles behind clinical decision-making.
Important — Educational Use Only
This application is an educational and self-study reference tool. It is not a medical device and has not been submitted for regulatory clearance, as it does not diagnose, treat, or manage patients or clinical conditions.
All outputs are based on fixed, published physiological formulae and established medical teaching frameworks. They are intended solely to illustrate interpretive principles for learning purposes and do not constitute clinical advice, diagnosis, or treatment recommendations for any individual patient.
Always consult a qualified healthcare professional before making any clinical decision. Users must apply their own clinical judgement and follow their institution's protocols at all times. This app is not intended for use in direct patient care.
No clinical data is stored or transmitted. All values entered are held in temporary session memory only and are permanently discarded when the session ends.
Dr Atif Elnil MBBS MRCP St George's Hospital London UK.
