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101 Cards in this Set
- Front
- Back
Disease that is associated with primary sclerosing cholangitis? What antibody may be seen?
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Ulcerative colitis (70%)
+ p-ANCA (in 70%) |
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What is budd-chiari syndrome?
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Occlusion of hepatic veins or IVC
Tx: heparin-->coumadin |
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What is common hematologic cause of budd-chiari?
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polycythemia vera
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What triad of sx are classic for budd-chiari?
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hepatomegaly
RUQ pain ascites |
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What ratio distinguishes ascites in portal hypertension from non portal causes?
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SAAG=serum-ascities albumin gradient
SAAG>1.1 =portal hypertension SAAG<1.1 = non-portal, peritonitis, cancer, hypoalbuminemia, pancreatitis |
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What lab is seen in ascitic fluid in spontaneous bacterial peritonitis?
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>250 polys
+ ascites culture |
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What lab distinguishes cirrhosis ascites from cardiac ascites?
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AFTP: ascites fluid total protein
AFTP <2.5 in cirrhosis >2.5 in cardiac ascites |
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What labs are seen in hemochromatosis?
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-HFE gene mutations
-Iron sat (iron/TIBC) >45% - ^ Ferritin |
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Labs seen in alcoholic hepatitis?
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AST: ALT > 2:1
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how do you determine if treatment is warranted in alcoholic hepatitis?
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Discrimination function = 4.6x (PT-control PT) + total bili
if >32 tx with prednisolone if no infection, GI bleed alt tx is pentoxifylline |
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Cause of GERD?
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Sustained relaxation of lower esophageal sphincter.
Worse with increased abdominal pressure (pregnancy, obesity) |
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Presentation of GERD?
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Heartburn or substernal pain 30-60 min after eating. Worse when lying down.
-May have nocturnal cough |
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Complication of chronic GERD?
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Barrett's esophagus (growth of columnar epithelium)
-predisposition to develop adenocarcinoma |
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Cause of achalasia?
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-Deffective LES nerve innervation
-Contacted LES with failure to relax -Decreased peristalsis of lower 2/3 of esophagus |
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Imaging findings in achalasia?
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-Esophageal manometry: absence of peristalsis
-Barium swallow: birds beak narrowing |
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Dx: Progressive dysphagia to solids and liquids?
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Achalasia
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Imaging findings in esophageal spasm?
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Barium swallow: "corkscrew" or "rosary beads"
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What medications relieve chest pain in esophageal spasms?
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Nitro, CCB
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Dx: Esophageal webs associated with iron deficiency in middle aged women?
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Plummer-vinson syndrome
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Dx: Esophageal webs located at squamocolumnar junction
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Schatzkis ring
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Dx: weakness in posterior pharyngeal wall associated with regurgitation, dysphagia and halitosis
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zenkers diverticulum
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Medication therapies for esophageal varices?
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-Nadolol (chronic tx)
-Vasopressin, octreotide (vasoconstrictors) -ABX in any cirrhosis patient with GI bleed (Ceftriaxone or norfloxacin) |
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Varices develop at what portal vein pressure?
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>10 mmHg
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Dx: Vomiting followed by painful hematemesis?
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Mallory-Weiss Syndrome
(tear of mucosa at gastroesophageal junction) |
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Most common cause of upper GI bleeding?
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PUD
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Three major causes of PUD?
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-H. pylori
-NSAIDS -hypersecretory peptic states (Zollinger ellison syndrome) |
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Dx: Benign gastrin secreting tumor usually located in pancreas causing PUD?
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Zollinger ellison syndrome
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How do NSAIDs cause GI injury?
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inhibits prostaglandin synthesis: decreased blood flow, bicarb synth, and mucus secretion
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Dx: Epigastric gnawing pain relieved with food, worse at night?
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duodenal ulcers
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Dx: Epigastric pain aggravated by food and associated with weight loss?
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gastric ulcer
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What is the triple therapy used to treat H. pylori infection?
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-PPI
-Clarithromycin -Amoxicillin (Flagyl if PNC allergy) x 2 wks |
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Zollinger ellison syndrome is associated with what metabolic disease?
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MEN 1
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Testing used to confirm dx of zollinger ellison syndrome?
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-fasting serum gastrin (gold standard)
-gastric acid secretory studies -secretin stimulation test -somatostatin receptor scintigraphy |
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Common findings in MEN1 (Wermer syndrome)?
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-Parathyroid tumor (hyper PTH,hypercalcemia)
-Gastrinoma (ZES) -Insulinoma -Prolactinoma -Carcinoid tumor |
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What 2 lymph node findings are consistent with gastric or abdominal cancer?
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sister mary joseph nodule (umbilical)
virchow's node (supraclavicular) |
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What is the most common cause of secretory diarrhea?
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toxins from bacterial infection
(has normal stool ion gap in osm) |
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What are common causes of osmotic diarrhea?
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celiac disease
laxative over use lactose intolerance (stool ion gap >100 osm) |
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What are common causes of excretory diarrhea?
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Crohns
Ulcerative colitis |
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What serologic tests confirm celiac sprue?
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IgA anti-endomysial and anti-tissue transglutaminase antibodies
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Skip lesions and granulomas are seen with what condition?
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crohns
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Dx: Currant jelly stools and sausage like mass on abd exam?
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intussusception
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Mucosal changes seen in crohns disease?
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skip lesions
cobblestoning |
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What serum antibody is found in crohns disease?
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ASCA
(Anti-Saccharomyces cerevisiae antibodies) |
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What serum antibody is found in ulcerative colitis?
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pANCA
(perinuclear antineutrophil cytoplasmic antibodies) |
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Area of GI tract most commonly involved in ulcerative colitis?
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rectosigmoid colon
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Dx: Fever, LLQ pain, n/v, palpable mass
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diverticulitis
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Best diagnostic imaging for diverticulosis?
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barium enema
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ABX treatment for mild diverticulitis?
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flagyl + cipro or bactrim
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What marker in blood indicates infection with HepB and infectivity?
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HBsAg
and HBeAg |
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What marker in blood indicates successful clearance of HepB or immunization?
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anti-HBs
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What marker in blood indicates acute infection or relapse in chronic HepB?
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anti-HBc (IgM)
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What treatment should be given to patient exposed to HepB?
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Hep B immunoglobulin
(within 7 days of exposure) |
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What exam findings are consistent with cirrhosis?
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gynecomastia
spider angiomas palmar erythema testicular atrophy hepatomegaly ascites |
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What is a bluish discoloration of umbilical skin caused by hemoperitoneum in severe pancreatitis?
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cullen's sign
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What is an ecchymotic discoloration of the flanks found in hemorragic pancreatitis?
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Turner's sign
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What peptic ulcer is caused by CNS stress?
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cushings ulcer
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What peptic ulcer is caused by stress in a burn patient?
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curlings ulcer
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Test of choice for diagnosis of PUD?
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EGD with rapid urease test
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Top 6 causes of uppper GI bleed?
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1. PUD
2. Varices 3. Gastritis 4. Erosive esophagitis 5. Mallory-weiss tear 6. Arterio-venous malformations, angioectasias |
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Rare cause of rectal bleeding and intussusception, usually presenting <2yo?
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Meckels diverticulum
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What is the rule of 2s in meckels diverticulum?
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-occurs in 2% of population
-located 2 feet from ileocecal valve -usually in patients < 2 years old -2 inches in length -2x more common in males -2 types of tissue common: gastric and pancreatic |
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Diagnostic test for meckels diverticulum?
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technetium 99m scan
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What tests are used to dx C-diff colitis?
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Stool ELISA (toxins A and B
Stool cytotoxin assay (takes 24-48 hrs) |
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What types of diarrhea have an increased osmotic gap?
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lactose intolerance
celiac disease malabsorption disorders: pancreatic insufficiency, whipples disease |
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What blood tests confirm dx of celiac disease?
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IgA antitissue transglutaminase
or anti-endomysial antibody |
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Dx: acute colonic adynamic ileus with competent ileocecal valve
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Ogilves
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Diagnostic study of choice for diverticulitis?
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Abdominal CT
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Dx: abdominal pain out of proportion to abdominal tenderness on exam
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mesenteric ischemia
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Most common cause of mesenteric ischemia?
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SMA embolism
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Imaging of choice in mesenteric ischemia?
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CT angiogram
Angiography (gold standard) |
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What pancreatic enzyme is most specific for pancreatitis?
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Lipase
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Which type of diarrhea has an increased osmotic gap (>50)?
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osmotic: lactose intolerance, celiac disease, pancreatic insufficiency
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What cause of diarrhea has increased fecal fat?
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malabsorption: celiac disease, pancreatic insufficiency, whipples disease
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A stool osmotic gap <50 indicates what cause of diarrhea?
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secretory: carcinoid, zollinger ellison syndrome, hormonal causes
motility: irritable bowel syndrome, scleroderma |
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Ransons criteria for pancreatitis at initial diagnosis?
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GALAW:
Glucose >200 Age >55 LDH >350 AST >250 WBC >16 |
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Jaundice is seen when serum bili reaches what level?
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>2.5
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Causes of unconjugated (indirect) hyperbilirubinemia?
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Overproduction: hemolysis, hematoma resorption, ineffective erythropoiesis
Defective conjugation: Gilberts syndrome, crigler-najjar syndrome |
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Cause of Gilbert syndrome?
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Genetic deficiency of bilirubin-UGT enzyme. Decreased bili conjugation.
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Which antibodies are seen in acute and chronic HepB?
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Acute HepB: IgM
Chronic HepB: IgG |
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What is the max recommended dose of tylenol per day?
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4g
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What is the toxic metabolite of tylenol?
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NAPQI
|
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Antidote for tylenol toxicity?
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N-acetylcysteine
(give up to 72 hrs after ingestion) or later if chronic toxicity |
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Chart which determines treatment and risk of hepatotoxicity in tylenol overdose?
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Rumack-Matthew nomogram
|
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What nail findings may be seen in cirrhosis?
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Muehrckes lines (horizontal white lines)
Terry's nails (white ground glass appearance) |
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Most common organism cause of spontaneous bacterial peritonitis?
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gram negatives: E.coli, klebsiella
|
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Tx of encephalopathy?
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restrict dietary protein
lactulose rifaximin |
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Scoring system used to stage liver failure?
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child-turcotte-pugh
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Scoring system used to stage survival and patients need for liver transplant?
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MELD score
|
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Cause of hemochromatosis?
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genetic disorder causing iron overload and accumulation in liver
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Tx of hemochromatosis?
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phlebotomy weekly
Deferoxamine (binds iron) |
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Dx: genetic disorder causing copper overload and accumulation in liver?
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wilsons disease
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Eye finding in wilsons disease patients?
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kayser-fleischer rings
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Tx of wilsons disease?
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chelation: penicillamine + pyridoxine
Zinc (decreases copper transport) |
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Most common type of gallstone?
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cholesterol
|
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Tx for choledocolithiasis?
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ERCP
cholecystectomy 6wks later |
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Imaging that is more sensitive for cholecystitis than US?
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HIDA scan
|
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What is charcots triad and reynalds pentad?
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Charcots: fever, jaundice, RUQ pain
Reynalds: above + altered mental status, shock sx associated with cholangitis |
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Infectious cause of diarrhea that is also associated with development of Guillian-barre syndrome?
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Campylobacter
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ABX of choice for severe campylobacter diarrhea?
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erythromycin
|
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Initial rx of choice for inflammatory bowel disease?
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Sulfasalazine
|
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Prolonged use of PPIs can lead to reduced levels of what nutrient?
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Vit B12
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