Interpreting an Arterial Blood Gas in Acute-on-Chronic Type 2 Respiratory Failure
A timed 10-minute data interpretation OSCE station with reading time, a warning bell and an examiner-style weighted checklist including critical items, marked the way a real examiner would mark it.
Data interpretation10 min14 checklist items
- Station type
- Data interpretation
- Time
- 10 minutes, after 60s reading
- Total marks
- 26
- Critical items
- 4 (missing one fails the station)
Candidate instructions
You are a foundation year doctor in the Emergency Department. A 72-year-old man with known severe COPD presents with increased breathlessness. An arterial blood gas has been performed on 2 L/min oxygen. You are required to interpret the arterial blood gas and outline the immediate management. You have 10 minutes. State your findings and management plan to the examiner.
How the station runs
- 60 seconds of reading time with the instructions above, and nothing else.
- 10 minutes on the clock, with a warning bell before the end.
- The examiner's checklist, 14 weighted items worth 26 marks, revealed only when the station ends.
- Your score, with a critical-fail flag if a safety-critical item was missed.
The checklist stays hidden until the station is over, exactly as it would outside the exam room.
Log in to run "Interpreting an Arterial Blood Gas in Acute-on-Chronic Type 2 Respiratory Failure"
A free account starts the clock: reading time, the station itself with a warning bell, then the examiner's checklist and your score.
Taught in
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Educational content for students and clinicians in training. It does not replace professional judgement, local protocols or current prescribing information.