Once again it depends on the type of diarrhea. As you said you have luminal epithelium sloughing and more importantly an enterotoxin that causes increased intestinal secretion (secretory diarrhea).thanks
from which compartment does the mainly loss of fluid happen?
like in cholera it is mainly from the intra cellular fluid becausa of detruction of mucosa of small intestine?
USMLE questions will not usually ask you to assume things, they always give hints, like in this case they always give hints in the history about the kind of diarrhea that patient might be having.gr but most questions on osmolarity dont tell you what type of diarrhea it is, so i guess we should assume it is isotonic then, unless otherwise stated?