GI Rosh Flashcards

1
Q

what helps distinguish c diff from from other benign antibiotic-associated diarrhea

A

fecal leukocytes (C diff)

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2
Q

tx Cdiff

A

oral vancomycin or oral fidaxomicin

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3
Q

primary treatment for Giardia infection

A

Tinidazole 2 grams orally as a single dose
avoid lactose containing foods

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4
Q

dx sigmoid volvulus

A

XR - bent inner tube, coffee bean sign
Abdominal CT scan
Contrast enema

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5
Q

tx sigmoid volvulus

A

sigmoidoscopy
surgery

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6
Q

tx hepatic encephalopathy

A

lactulose and rifaximin

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7
Q

What is the recommended protein intake in a patient with hepatic encephalopathy?

A

1–1.5 g/kg/day.

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8
Q

in what dz is Dermatitis herpetiformis commonly seen

A

celiac

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9
Q

what is Dermatitis herpetiformis

A

vesicobullous, pruritic lesions on the elbows, knees, and buttocks

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10
Q

MCC SBO

A

adhesions from prior abdominal surgery

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11
Q

dx SBO

A

XR
CT

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12
Q

tx SBO

A

NG tube decompression

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13
Q

What type of hernia is most commonly associated with small bowel obstruction?

A

inguinal hernia

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14
Q

Mallory-Weiss syndrome is characterized by

A

longitudinal mucosal lacerations in the distal esophagus and proximal stomach, commonly associated with violent or repeated vomiting

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15
Q

sx mallory-weiss

A

dysphagia, odynophagia, and upper GI bleeding (mild)

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16
Q

dx mallory weiss

A

upper endoscopy

17
Q

tx mallory weiss

A

All patients with Mallory-Weiss syndrome should be treated with proton pump inhibitors for acid suppression and antiemetics

if active bleeding - thermal coagulation, hemoclips, or endoscopic band ligation

18
Q

what is Boerhaave syndrome

A

full-thickness esophageal perforation and a surgical emergency

19
Q

how to patients with Boerhaave syndrome present

A

severe chest pain that begins acutely after vomiting

20
Q

The most common cause of upper gastrointestinal (GI) bleeding

A

duodenal ulcer – usually due to H pylori

21
Q

The second most common cause of peptic ulcer formation

22
Q

classic sx for gastric vs duodenal ulcers

A

gastric ulcers cause pain immediately after meals, whereas food relieves the pain caused by duodenal ulcers

23
Q

tx H pylori infection

A

quadruple therapy: 14 days of PPI, bismuth, tetracycline, metronidazole

24
Q

where do anal fissures MC occur

A

posterior midline

25
tx anal fissure
high fiber diet, softening stool to prevent recurrent trauma, and normalization of bowel movement if no response --> topical nitroglycerin or topical diltiazem In cases that do not respond to conservative treatment, topical nitroglycerin or diltiazem ointment
26
what lab can aid in the diagnosis of acute mesenteric ischemia
serum lactate
27
incarcerated vs strangulated hernia
incarcerated - Firm and painful, nonreducible by direct manual pressure strangulated - Painful due to impaired blood flow, ischemia, and necrosis, overlying skin changes
28
Any patient with an exam indicative of a strangulated hernia should receive
cefoxitin intravenously and emergent surgical consultation
29
tx for thrombosed hemorrhoids
anesthetizing the lesion and evacuating with an elliptical incision
30
CT findings for cholecystitis
thickened gallbladder wall (> 4–5 mm), pericholecystic fluid, or dilated intra- or extrahepatic biliary ducts
31
Which form of IBD is more likely to develop a malignancy
UC
32