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Flashcards in GI module 3b Deck (38)
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1

What are the two forms of pyloric obstruction?

Infantile hypertrophic pyloric stenosis (IHPS) (congenital)
Adult/acquired pyloric obstruction (Acquired)

2

signs and symptoms of IHPS (congenital PS)

Infant 2-3 weeks begins projectile vomiting (several feet) for no reason

3

Pathophysiology of IHPS

hypertrophied pyloric sphincter

4

etiology of IHPS

unknown - ? hormones

5

TX for IHPS

Pyloromyotomy

6

Cause of Acquired Pyloric Obstruction?

severe peptic ulcer or tumor in area

7

s/s of acquired pyloric obstruction?

epigastric discomfort/fullness w/ eating that progresses to severe

8

tx for acquired pyloric obstruction

address cause of obstruction

9

What are the 5 different kinds of mechanical obstruction?

Adhesions
Herniation
Intussusception
Volvulus
Tumor growth

10

Define obstructive adhesions

Fibrous scar tissue adheres to intestinal loops

11

What is the MC type of mechanical SI obstruction?

Adhesions

12

What is the 2nd MC type of Mechanical SI obstruction?

Herniation

13

What is most commonly a bowel obstruction of infants and young children?

Intussusception-more common in ileocecal area

14

What is the definition of a volvulus

intestine twists upon itself

15

What is the MC cause of LI obstruction?

Tumor growth

16

What is one functional obstruction (physiological obstruction)

Paralytic ileus

17

Define paralytic ileus

Obstruction that results when peristalsis stops

18

What are possible causes of an ileus?

Narcotics
HTN meds
ABD, spine, joint surgery
Injury/trauma
Infection/peritonitis
MI
Imbalance of lytes
D/o of muscle function
Mescenteric ischemia

19

TX strategies for ileus?

NG tube decompress pressure in GI
Address underlying cause
Surgery if conservative tx unsuccessful

20

What is the other name for Congenital Aganglionic Megacolon?

Hirschsprung's Disease

21

Etiology of Hirschsprung's dz?

Birth defect -ganglionic cells of the LI fail to develop

22

What is the functional result of Hirschsprung's Dz?

Impaired motility of colon - poor coordination/ability to contract muscle
Impacted/trapped stool, infection, inflammation, constipation

23

Name the 2 different kinds of Hirschsprungs dz

Short-segment-rectosigmoid colon
Long segement-regions proximal to rectosigmoid also involved

24

Tx for Hirschsprung's dz

Decompress colon - serial rectal irrigation-surgical removal of involved intestinal segment

25

What are the 2 different forms of IBD?

Ulcerative colitis
Crohn Dz

26

Peak onset of Crohn's

15-25 and then again up to age 40

27

Pathophys of Crohns

Inflammation extends through all layers of intestinal wall
Granulomatous inflammation occurs
Skip lesions may occur
can effect entire GI system

28

Pharaceutical tx of crohns

Antiinflammatory drugs
Salyscylate
Corticosteroids
Infliximabe
Immune suppressors
ABX

29

Surgical tx.

Intestinal resection
colostomy/ileostomy

30

What is different about the inflammation of UC as compared to crohns

UC inflammation only extends mucosa-not through all layers like Crohn's

UC always involves rectum and proximally to contiguous sections of colon-Crohn's can effect ANYWHERE along the GI tract