Free ABG Interpretation Practice Cases
Master arterial blood gas interpretation through guided clinical case studies. Work step-by-step through pH, respiratory versus metabolic causes, compensation, oxygenation, and complete ABG interpretation.
Start with a Clinical Case
Each case presents a patient scenario, vitals, ABG values, and a guided interpretation sequence. The case focus and final answer stay hidden until you work through the steps.
Patient 1
Review the patient presentation, vitals, and ABG values to determine the complete interpretation step by step.
Patient 2Patient 2
Use the clinical clues and ABG values to decide the pH status, primary cause, compensation, and oxygenation category.
Patient 3Patient 3
Analyze the patient scenario and work through each interpretation step before revealing the final answer.
Patient 4Patient 4
Interpret the ABG in context using the patient’s symptoms, vital signs, and lab values.
Patient 5Patient 5
Work through the ABG systematically and build the final interpretation from the data provided.
Full AccessUnlock More Practice
Continue with additional ABG cases, disease modules, ventilator content, and board-aligned review.
Use the Same 5-Step Process Every Time
PulmoLearn teaches ABGs with a repeatable workflow so students stop guessing and start interpreting with confidence.
Review the ABG Concepts
Use these pages to review the major ABG patterns, normal values, and interpretation steps before or after completing the practice cases.
How to Interpret an ABG
A step-by-step guide to pH, PaCO₂, HCO₃, compensation, oxygenation, and final interpretation.
ReferenceNormal ABG Values
Review the normal ranges for pH, PaCO₂, HCO₃, PaO₂, SaO₂, and related interpretation clues.
Cheat SheetABG Cheat Sheet
A quick-reference page for common ABG patterns, compensation clues, and oxygenation categories.
PatternRespiratory Acidosis
Learn the low pH, high PaCO₂ pattern caused by inadequate ventilation or CO₂ retention.
PatternRespiratory Alkalosis
Learn the high pH, low PaCO₂ pattern caused by excessive ventilation or CO₂ loss.
PatternMetabolic Acidosis
Learn the low pH, low HCO₃ pattern caused by acid gain, bicarbonate loss, or impaired acid clearance.
PatternMetabolic Alkalosis
Learn the high pH, high HCO₃ pattern caused by acid loss, bicarbonate gain, or volume/electrolyte changes.
PDFPrintable ABG Guide
Download the branded PulmoLearn ABG interpretation reference for quick review and study.
PulmoLearnFull RT Curriculum
Continue with respiratory disease modules, assessment, physiology, equipment, and board preparation.
Ready for More Than the Free Cases?
PulmoLearn includes respiratory disease modules, core RT curriculum, clinical reasoning practice, progress tracking, and NBRC board-aligned review.