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GI Midterm
Gastrointestinal pathophysiology
25
Other
Professional
02/21/2011

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Cards

Term
Most common malignant GI neoplasia of cats
Definition
Lymphosarcoma
Term
The place where dogs get GI carcinoma
Definition
Stomach
Term
The place where cats get GI carcinoma
Definition
Intestines
Term
What type of cells does a GIST tumor come from?
Definition
Interstitial cells of Cajal (precursor intestinal pacemaker cells)
Term
Who is more likely to metastasize, GIST or leiomyosarcoma?
Definition
GIST
Term
Most common tumor of lower GI in domestic mammals?
Definition
Lymphosarcoma (malignant lymphoma)
Term
Which intestinal neoplasm forms a 'napkin ring' lesion?
Definition
Adenocarcinoma
Term
Which component of the gluten molecule causes sensitivity?
Definition
Gliadin.
Term
Which breed has gluten sensitivity been confirmed in?
Definition
Irish Setters
Term
Which stain will show fecal fat?
Definition
Sudan III
Term
What does the presence of fecal starch (amylorrhea) suggest?
Definition
Reduced amylase activity
Term
What does the presence of fecal muscle fibers indicate?
Definition
Protease deficiency (or they just really ate a lot of meat)
Term
What does the presence of fecal muscle fibers indicate?
Definition
Protease deficiency (or they just really ate a lot of meat)
Term
How do you measure fecal proteolytic activity?
Definition
Gelatin digestion/casein digestion
Term
What does the presence of a-1 protease inhibitor in the feces indicate?
Definition
Sensitive indicator of protein-losing enteropathy.
Term
What can a D-xylose absorption test tell you?
Definition
Can tell you if you have malabsorption going on, but can be affected by bacteria, vomiting, delayed gastric emptying, ascites.
Term
How do you test fat absorption?
Definition
Administer corn oil PO, look for lipemia at 5 hours after.
Term
What does post-prandial lipemia depend on?
Definition
Bile acids, pancreatic lipase, absorption and lymphatic transport
Term
Does folate absorption require pancreatic enzymes?
Definition
No!
Term
Where is colbalmin absorbed?
Definition
Distal ileum.
Term
What needs to happen for cobalamin to be absorbed?
Definition
Must be separated from R protein by pancreatic proteases.
Term
What causes increased serum folate?
Definition
Bacterial overgrowth (bacteria synthesize folate), exocrine pancreatic insufficiency.
Term
What causes decreased folate?
Definition
Proximal small intestinal disease (malabsorption), certain drug effects
Term
What causes decreased serum levels of cobalmin?
Definition
Exocrine pancreatic insufficiency, bacterial overgrowth, distal small intestinal disease, being a giant schnauzer
Term
What does the TLI test indicate?
Definition
Low levels indicate exocrine pancreatic insufficiency. Can have increased levels transiently after pancreatitis.
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