Colon and small intestine DO Flashcards
How do you diagnose IBS?
Diagnosis of exclusion
Decrease or absence of intestinal peristalsis; typically associated with trauma, surgery, infection, or severe metabolic disease
Paralytic ileus
Twisting of intestine
Volvulus
Telescoping of intestine
Intussusception
What causes mesenteric ischemia?
Narrowing of mesenteric arteries or sudden blockage of artery by embolus
How would you initially check for mesenteric ischemia? What would give you a definitive diagnosis?
Initially - CT; Definitive - Mesenteric angiogram
What is the most common presentation of diverticular disorders? Where are they most prevalent?
LLQ pain; Western societies
Best test for diverticular disorders?
CT scan
When is a barium enema 100% contraindicated?
When you suspect perforation
Which IBD has lesions from mouth to anus, pain in the RLQ, and shows “cobblestone” appearance on a CT scan?
Crohns disease
Which IBD has lesions primarily in the colon, pain in the LLQ, and does NOT have granulomas?
Ulcerative colitis
Treatment for Crohn’s and Ulcerative Colitis?
5-ASA (Asacol)
Which lab value is positive in 44% of CD cases?
Anti-saccharomyces cervisial (ASCA)
Is bleeding more common in Crohn’s disease or UC?
UC
To diagnose toxic megacolon, 3 out of 4 criteria must be present. What are these criteria?
temp greater than 101.5, HR greater than 120bpm, leukocytosis greater than 10.5, anemia
Positive psoas sign and rebound tenderness is diagnostic for?
Appendicitis
What skin disorder is pathognomonic for Celiac’s disease?
Dermatitis Herpetiformis - can confirm with skin bx
What lab values should you look for when diagnosing Celiac’s disease?
Anti-tissue transglutaminase antibodies OR anti-endomysium antibodies
How do you confirm a diagnosis of Celiac disease?
Biopsy of small intestine
What is the guidelines for diagnosing constipation?
Difficulty passing stool in greater than 25% of defecation attempts for grater than 3 months with no obstructive or peristalsis disorder
MC form of GI cancer?
Colorectal cancer
“Apple core” or “napkin ring” appearance of the intestines on X-ray is consistent with?
Colon cancer
