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NBME 19 Answers

nbme19/Block 4/Question#33 (6.8 difficulty score)
Oral fluid therapy for diarrhea caused by ...
Membrane transport mechanism denoted by letter 'C' (Sodium-Glucose cotransporter)🔍

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submitted by cassdawg(548),

Oral rehydration therapy commonly consists of sugar/electrolyte water because of the ability to utilize the sodium glucose symporter. Where sodium goes, water follows, so by hydrating with this mixture it allows for an osmotic "pull" of water into the intestines.

Here is an article with more detail and a pretty diagram:

ftr_dr_bowowers  thank you!!! and thanks for not having the answer scrambled smh +