Quiz 3 Bowels part 1 Flashcards Preview

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Flashcards in Quiz 3 Bowels part 1 Deck (17):
1

intestinal atresia

narrowing or absence of portion of intestine

2

what type of atresia is associated with Down's syndrome and the most common form of atresia?

duodenal atresia

3

what is most common cause of non-duodenal atresia?

vascular malformation in utero leading to decreased intestinal profusion and ischemia

4

Hirshsprungs disease

neural crest cells don't migrate during fetal development of the intestine
- absence of ganglion cells
- infected segment fails to relax, causing constipation and obstruction of bowel
- no peristalsis

5

suspect hirshprugs when?

a baby hasn't passed meconium in first 48 hours of life

6

Intussception

telescoping proximal end in distal end
red current jelly stool

7

Meckel's diverticulum

blebs out of intestine in distal ileum 2 feet rom ileocecal valve
- vestigial remnant of vetelline duct
- most common intestinal malformation

8

true diverticula vs false

true: all layers including muscle
false: only mucosa and submucosa

9

where is diverticulosis most common

sigmoid colon

10

cause of intestinal obstruction

volvulus
intussception
hirshprungs

11

Celiac

TTG test is best
villus atrophy or blunted villi in sm intestine
can't absorb fat soluble vitamins or iron

12

diagnosis of celiac

have to have frank ab response to gliadin

13

IBD

Crohns and UC

14

Crohns

can affect any part of the GI from mouth to anuns (skip lesions)
non casseating granulomas
full thickness infiltrative

15

UC

restricted to colon and rectum
no skipping, just moves up
no granuloma
crypt abscess
pseudopolyps
increased risk of colon cancer

16

hist of crohns

- lymph cells from mucosa all the way through muscular is layer
- transmural full thickness lesion
- non-caseating granuloma

17

where is crohns most commonly found?

ileum