Not quite!

Q: There's been a collision. A motorcyclist is lying injured and unconscious. Why should you only remove their helmet if it's essential?
Correct answer:
Removing it could make any injuries worse
Explanation
When someone is injured, any movement that isn't absolutely necessary should be avoided, since it could make the injuries worse. Unless it's essential to remove a motorcyclist's helmet, it's generally safer to leave it in place.
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