Heimlich Maneuver

[SSerenity]

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Heres the question, and the alleged answer: https://www.dropbox.com/s/vfr5gjgin4342k1/Rubbish.pdf

This is from a GS exam.

The answer is apparently B!

I don't understand why. If I am choking, a forced expiration would be fantastic. I imagine I would require my diaphragm forced upward, increasing my thoracic pressure by DECREASING my thoracic size. How does increasing my thoracic cavity size help??


Thanks!

 

[monkeyvokes]

yeah I agree I think it would be decreasing. I like how you named the file "rubbish" though.