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NBME 22 Answers

nbme22/Block 1/Question#33 (24.9 difficulty score)
A 32-year-old woman begins to hyperventilate ...
Cerebral blood flow🔍
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 +14  upvote downvote
submitted by keycompany(264),
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keycompany  EDIT: Via the **Haldane Effect**, not the Bohr Effect. +  
impostersyndromel1000  excellent response +  
teepot123  fa 19 pg 489 +  



 +2  upvote downvote
submitted by seagull(1080),
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iRdoee/okgrpke.eaxsnplisn:/ty//i.cweih_fiwpt

aoglasvaV eopcSy.n uchM sareei




 +0  upvote downvote
submitted by usmleboy(7),

One thing that always helps me remember this concept is that in the patients post brain surgery, we often HYPERventilate their vent to decrease ICP (I.E. decrease cerebral blood flow).

This is due to lower PaCO2 in the blood, and resultant vasoconstriction of the cerebral vessels.