Severe community-acquired pneumonia — SCE Respiratory MCQ
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Correct answer: E — Seven days after full radiographic resolution
Explanation lettering: B = shown as A · D = shown as B · E = shown as C · A = shown as D · C = shown as E
C is correct. BTS advises against commercial air travel while a pneumothorax remains present because trapped gas expands at cabin altitude. A patient should wait seven days after full resolution has been confirmed on chest radiography; higher-risk cystic-lung-disease situations need individual specialist advice. Drain removal or symptom resolution alone does not prove re-expansion. The longer blanket intervals in the alternatives are not the standard recommendation for an uncomplicated resolved primary spontaneous pneumothorax.
Reference: https://thorax.bmj.com/content/77/4/329