Pathophys Diarrhea

Question 1

definition of diarrhea

Answer 1

increase of frequency, volume, or urgency of defecation +/- change in consistency

Question 2

normal stool frequency

Answer 2

3 bmp/wk-3bm/d

Question 3

physiologic definition of diarrhea

Answer 3

> 200 gm stool/day (irrespective of consistency)

Question 4

Normal amount ingested & secreted/day

Answer 4

2L, 6.5L, total of 8.5L/day

Question 5

what’s the basis for normal fluid absorption in gut?

Answer 5

Na+

Question 6

transport of Na+ in small intestinal villi?

In large intestinal crypts?

Answer 6

Na/glc co-transporter, Na/H exchanger

ENaC