Question 1

``` 1. Absorption of fat is defective when destroyed by disease or resection of a. Duodenum b. Jejunum c. Ileum d. All of the above ```

Accepted Answer

c. Ileum Lipolysis is completed in the duodenum and jejunum by pancreatic lipase, which is inactivated by a pH <7.0. (19th ed., p1935)

Question 2

3. Similar bet. GI TB & Crohn's. EXCEPT. A. Caseating granuloma B. Lymph node involvement C. Fistula

Accepted Answer

A. Caseating granulomaThe earliest lesions are aphthoid ulcerations
and focal crypt abscesses with loose
aggregations of macrophages, which form
noncaseating granulomas in all layers of the
bowel wall (19th ed., p1952)

Question 3

``` 4. Malabsorption can be expected after Bilroth II operation because A. part of the pancreas is resected B. Mucosa of small bowel is destroyed C. Length of small bowel is reduced D. Stasis at the afferent loop ```

Accepted Answer

D. Stasis at the afferent loop
Although rarely seen today as a result of the
decrease in the performance of Billroth II
anastomosis, two types of afferent loop
syndrome can occur in patients who have
undergone this type of partial gastric
resection. (19th ed., p1926)

Question 4

7. Racecadotril anti-diarrheal mechanism?

Accepted Answer

``` Racecadotril increases the availability of endogenous opioids (enkephalins) by inhibiting the membrane-bound enkephalinase. The enkephalins in turn mediate their effect through δ receptor activation that induces a selective increase in Cl absorption by inhibiting adenylate cyclase. ```

Question 5

9. True of osmotic diarrhea –

Accepted Answer

Fasting lessens symptoms

Question 6

``` 11. Postulated mechanism of how dietary fiber can decrease the risk of colon CA except a. Dilute carcinogens b. Decrease secondary bile acids c. Increase colonic pH d. --- ```

Accepted Answer

a. Dilute carcinogens

Question 7

12. Risk factor for increase colorectal CA a. Advanced age b. Aspirin c. IBS d. Polyps

Accepted Answer

d. Polyps

Question 8

13. Bad prognostic factor for Recurence of colonic ca after surgery A. Bleeding B. Adhesion to other organ

Accepted Answer

B. Adhesion to other organ

Question 9

``` 15. Trait of colonic poly with higher malignancy A. --- b. 0.5 size c. Pedinucleated D. Villous polyp ```

Accepted Answer

D. Villous polyp

Question 10

``` 16. IBD occurs because A. There is a predominance of pro inflammatory cytokines B. Mucosal system is normally reactive to luminal contents C. Intestinal mucosal cells treat as commensals D. AOTA ```

Accepted Answer

D. AOTA

Question 11

18. Main antibody in ulcerative colitis –

Accepted Answer

Perinuclear antineutrophil cytoplasmic antibodies (pANCAs)

Question 12

``` 20. Expected in patients with IBD except A. Hypoalbuminemia B. Leukocytosis C. Decreased ESR D. Decreased hemoglobin ```

Accepted Answer

C. Decreased ESR

Question 13

``` 23. True of GITB A. Far advanced TB on Xray predicts presence of extrapulmonary TB B. Current incidence is on the rise due to AIDS C. Non-caseating granuloma D. Primarily treated surgically ```

Accepted Answer

B. Current incidence is on the rise due to AIDS

Question 14

``` 24. Expected in patients with IBD except A. Hypoalbuminemia B. Leukocytosis C. Decreased ESR D. Decreased hemoglobin ```

Accepted Answer

C. Decreased ESR

Question 15

``` 27. Risk factor for bleeding diverticula except: a. Young age b. NSAIDs c. Hypertension ```

Accepted Answer

a. Young age

GIT Flashcards

(27 cards)