Colorectal Rosh Flashcards
Which of the following serum tests would you order in the initial laboratory evaluation of a patient with suspected rectal neoplasia?
Carcinoembryonic antigen (CEA)
What ophthalmologic examination finding is pathognomonic for Wilson disease?
Kayser-Fleischer rings.
The most common causes of acute pancreatitis are:
Gallstones (biliary tract pathology)
Alcohol
Other causes: hypertriglyceridemia
What is the gold standard for diagnosing peptic ulcer disease?
Endoscopy
What is the most common cause of upper gastrointestinal bleeding?
Peptic ulcer disease
What is the tumor marker for hepatocellular carcinoma
Alpha fetoprotein
1-day history of throbbing rectal pain. Your examination shows a large thrombosed external hemorrhoid. Which one of the following is the preferred initial treatment for this patient?
Elliptical excision of the thrombosed hemorrhoid.
IF the pain is already subsiding or more time has elapsed, and if there is no necrosis or ulceration, measures such as sitz baths, bulk laxatives, stool softeners, and local analgesia may be helpful
Which of the following findings seen on rectal examination is most consistent with a concomitant systemic process?
Lateral anal fissure
Initial Treatment of Choice for Sigmoid Volvulus?
Sigmoidoscopy (decompress and detorse the coffee bean bowel)
What is the tumor marker for pancreatic cancer?
CA19-9
What abx is known for causing C-diff?
Clindamycin
What study can definitively diagnose celiac disease?
Small bowel biopsy
What is the Schilling test used for?
Used to determine the cause of B12 malabsorption secondary to disorders such as pernicious anemia
What disease are these labs helpful: IgA antiendomysial (EMA) and anti-tissue transglutaminase (anti-tTG) antibodies
Celiac Disease
Celiac disease is associated with what skin finding?
dermatitis herpetiformis
(chronic, very itchy skin rash made up of bumps and blisters)
What test can be used to confirm lactose intolerance?
Hydrogen breath test
What disorder is associated with celiac disease?
Type-1 DM
Which of the following is an indicator of unresectability of gastric cancer?
Disease encasement of the hepatic a.
Which of the following is a risk factor associated with the development of pancreatic cancer?
Cigarette smoking
What is the most common cause of gastric cancer?
H. pylori
Gastroenteritis caused by intake of improperly refrigerated cooked or fried rice is due to what bug?
Bacillus cereus
Which bacterial gastroenteritis is associated with febrile seizures?
Shigella
What is a common cause of worsening hepatic encephalopathy?
Constipation
Bonus Fact: On physical examination, asterixis is characteristic of the process (“flapping” of the wrist when it is extended)
Which of the following organisms is the most common cause of traveler’s diarrhea?
Enterotoxigenic Escherichia coli
