Colon and small intestine DO

Question 1

How do you diagnose IBS?

Answer 1

Diagnosis of exclusion

Question 2

Decrease or absence of intestinal peristalsis; typically associated with trauma, surgery, infection, or severe metabolic disease

Answer 2

Paralytic ileus

Question 3

Twisting of intestine

Answer 3

Volvulus

Question 4

Telescoping of intestine

Answer 4

Intussusception

Question 5

What causes mesenteric ischemia?

Answer 5

Narrowing of mesenteric arteries or sudden blockage of artery by embolus

Question 6

How would you initially check for mesenteric ischemia? What would give you a definitive diagnosis?

Answer 6

Initially - CT; Definitive - Mesenteric angiogram

Question 7

What is the most common presentation of diverticular disorders? Where are they most prevalent?

Answer 7

LLQ pain; Western societies

Question 8

Best test for diverticular disorders?

Answer 8

CT scan

Question 9

When is a barium enema 100% contraindicated?

Answer 9

When you suspect perforation

Question 10

Which IBD has lesions from mouth to anus, pain in the RLQ, and shows “cobblestone” appearance on a CT scan?

Answer 10

Crohns disease

Question 11

Which IBD has lesions primarily in the colon, pain in the LLQ, and does NOT have granulomas?

Answer 11

Ulcerative colitis

Question 12

Treatment for Crohn’s and Ulcerative Colitis?

Answer 12

5-ASA (Asacol)

Question 13

Which lab value is positive in 44% of CD cases?

Answer 13

Anti-saccharomyces cervisial (ASCA)

Question 14

Is bleeding more common in Crohn’s disease or UC?

Answer 14

UC

Question 15

To diagnose toxic megacolon, 3 out of 4 criteria must be present. What are these criteria?

Answer 15

temp greater than 101.5, HR greater than 120bpm, leukocytosis greater than 10.5, anemia

Question 16

Positive psoas sign and rebound tenderness is diagnostic for?

Answer 16

Appendicitis

Question 17

What skin disorder is pathognomonic for Celiac’s disease?

Answer 17

Dermatitis Herpetiformis - can confirm with skin bx

Question 18

What lab values should you look for when diagnosing Celiac’s disease?

Answer 18

Anti-tissue transglutaminase antibodies OR anti-endomysium antibodies

Question 19

How do you confirm a diagnosis of Celiac disease?

Answer 19

Biopsy of small intestine

Question 20

What is the guidelines for diagnosing constipation?

Answer 20

Difficulty passing stool in greater than 25% of defecation attempts for grater than 3 months with no obstructive or peristalsis disorder

Question 21

MC form of GI cancer?

Answer 21

Colorectal cancer

Question 22

“Apple core” or “napkin ring” appearance of the intestines on X-ray is consistent with?

Answer 22

Colon cancer