Oxygen and smoking safety — GPhC CRA MCQ
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Educational content. Not a substitute for clinical judgement or local policy.
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Correct answer: A — Explain that the fire risk persists, stop petroleum products, and urgently involve the home-oxygen service in a risk review
Explanation lettering: B = shown as A · D = shown as B · E = shown as D · A = shown as E
A is wrong because neither a window nor a low flow makes smoking around home oxygen safe. B is correct: oxygen-enriched clothing and furnishings remain a fire hazard, petroleum products add fuel, and ongoing indoor smoking requires urgent specialist risk management plus cessation support. C can trap heat and ignores oxygen enrichment. D is unsafe because vaping equipment can provide an ignition source. E falsely limits the risk to cylinders.
Reference: NHS: Home oxygen therapy. https://www.nhs.uk/conditions/home-oxygen-treatment/