UW revision lactose

Question 1

table. etiology?

Answer 1

Congenital or developed lactase deficiency.
Small intestinal infection or inflammation

Question 2

table. CP?

Answer 2

GI distess after dairy intake
A) Abdominal pain
B) Flatulence/bloating
C) +/- watery diarrhea

Question 3

table. Dx?

Answer 3

resolution of symptoms on dairy-restricted diet

LACTOSE BREATH HYDROGEN TEST (undigested lactose is metabolized by colonic bacteria, releasing hydrogen gas and other byproducts)

Question 4

table. Management?

Answer 4

Dietary restriction of lactose
Lactase replacement if dairy ingested

Question 5

in general CP in case?

Answer 5

postprandial GI distess (pain, bloating), benign abdominal examination, normal lab study.

Question 6

Lactose deficiency may be precipitated by inflammatory disorders affecting the brush border, such as infectious gastroenteritis, celiac disease or crohn disease

Answer 6

.

Question 7

SIBO. causes bloating and diarrhea in susceptible patients ( intestinal surgery, scleroderma)
SIBO in unlikely in a patient with regular bowel movements and no relevant risk factors.

Answer 7

.

Question 8

Lactase concentration declines as one ages into adulthood. most common race - asians (90 proc.) and africans.
less common in europeans

Answer 8

.

Question 9

What type diarrhea?

Answer 9

osmotic