GI Flashcards
Diagnostic step for a Meckel’s diverticulum?
Technetium-99 scan
Anemia in a gastric bypass pt, what’s the dx?
B12 deficiency
Oral lesions, vesicles on an erythematous base and odynophagia in an AIDS patients, what’s the dx? How do you tx?
HSV esophagitis; (val)acyclovir
How do you diagnose PUD?
Endoscopy w/bx (EGD)
What are the risk factors for gallstones (cholesterol)? pigmented?
fat, female, forty, fertile, and Native American; hemolysis, African American
Foul smelling, difficult to flush diarrhea that slows down at night, dx?
osmotic diarrhea
First step in a GI bleed? The next four things?
2 large bore IV’s! 1) IVF bolus; 2) type and cross and transfuse as needed; 3) IV PPI; 4) call GI for EGD
What is the best tx for achalasia?
myotomy (can also do dilation though risk of perf, and botulinum toxin, though needs to be redone)
Alternative bowel habits with pencil thin stools, dx and what’s next?
colon cancer; start with colonoscopy
25 yo man with watery diarrhea, weight loss, and fistulas - dx?
Crohn’s disease
40 yo woman with jaundice and no alcohol or viruses, dx? How do you diagnose? Tx?
primary biliary cirrhosis; biopsy (imaging is normal); transplant
How do you localize a gastrinoma?
somatostatin receptor scintillography
You do a large volume paracentesis, what should you do immediately after?
IV albumin
RUQ pain, jaundice, fever, altered mental status and hypotension; dx? next step?
ascending cholangitis (reynold’s pentad); ERCP (first) and abx (at same time)
What do you get if you’re worried about a GI bleed in a healthy term neonate right after delivery?
Apt test (a medical test used to differentiate fetal or neonatal blood from maternal blood found in a newborn’s stool or vomitus - positive means fetal blood)
When do you give antibiotics to pancreatitis? Which one?
Meropenem if an FNA/bx grows an organism
There is a GI bleed not seen on endoscopy, and they require transfusions every 3 hours, next step?
brisk bleed - do an arteriogram
Colon cancer screening starts when?
50 in everyone, or 10 years before diagnosis in any first degree relative
Gallstones and dilated common bile duct on ultrasound, dx?
choledocholithiasis
Name 8 etiologies of cirrhosis
VW HAPPENs
1) viral hepatitis; 2) wilson’s disease; 3) hemochromatosis; 4) alpha-1 anti-trypsin; 5) Primary sclerosing cholangitis; 6) primary biliary cholangitis (b = bitches); 7) EtOH; 8) NASH/NAFL
Painless rectal bleeding in a patient greater than 50 yo, dx? Tx?
Diverticular hemorrhage
can embolize if severe
White blood cells and blood in diarrhea lasting 8 weeks, dx? Next step?
inflammatory diarrhea, get a colonoscopy
Early satiety, weight loss, in a Japanese man, dx?
gastric cancer
What do you add to the usual 5 things in GI bleed if they are cirrhotic?
Octreotide (for varices) and ceftriaxone (for SBP prophylaxis)
When do you do a colonoscopy for diverticulitis?
2-6 wks after resolution
Diabetes, nausea, vomiting, and abdominal pain chronically, dx?
gastroparesis
Continuous lesions, crypt abscesses, diagnosis?
ulcerative colitis
Diarrhea from a chinese food buffet line, dx?
Bacillus cereus
What is the bx of Barrett’s esophagus going to look like?
intestinal metaplasia
Prophylaxis for spontaneous bacterial peritonitis?
fluoroquinolone
What test do you do to investigate intussusception?
Air enema
Burning retrosternal chest pain better with sitting up and antacids, dx?
GERD
What is the tx of gallstone pancreatitis?
ERCP
What is the diagnostic step for primary biliary cirrhosis?
biopsy only (imaging is normal)
What is the tx of peptic ulcer disease causing bleeding?
PPI
Two most common causes of pancreatitis?
1) EtOH; 2) gallstones
Bloody diarrhea, renal failure in a child, dx?
TTP/HUS and shiga like toxin
Name 5 causes of esophagitis. How does pt present?
PIECE: 1) Pill induced; 2) Infectious; 3) Eosinophilic; 4) Caustic (strong base or strong acid ingestion); 5) gErd
odynophagia or dysphagia
Poultry, eggs, and diarrhea, dx?
Salmonella
Screening for hepatocellular carcinoma? (in pts with cirrhosis or hep B)
ultrasound and AFP q6 months
Tx for Barrett’s metaplasia?
high dose PPI
How do you tx diffuse esophageal spasm?
nitro spray or calcium channel blockers (smooth muscle relaxation)
Watery diarrhea that has no change in frequency with sleeping or NPO, dx?
secretory diarrhea (osmotic has no sleeping sxs because it is affected by diet)
You get an ultrasound and aren’t sure if it is cholecystitis - what do you do?
HIDA scan
Colicky RUQ abdominal pain - what’s the dx? and next step?
gallstones (cholelithiasis) - get a RUQ U/S
Watery diarrhea, weight loss, fistula formation, dx?
Crohn’s
You’re worried about a GI bleed in a premature neonate - what do you get?
XR
Caribbean farmer, negative antibodies, and blunting of intestinal villi, dx?
Tropical sprue (tx with antibiotics)
Familial adenomatous polyposis progression? Tx? Mutation?
polyps at 18, cancer at 28, dead at 38; prophylactic colectomy; APC gene
What medical tx can you offer pts with wilson’s disease? What is affected in Wilsons (3)?
penicillamine; 1) basal ganglia - chorea; 2) liver = cirrhosis; 3) eyes: Kayser-Fleischer rings
What’s special about rectal ulcerative colitis?
no risk of colon cancer, so doesn’t need the screening colonoscopy or colectomy
How do you dx gastroparesis?
gastric emptying study (gt 60% at 2 hrs or gt 10% left at 4 hrs, then test is positive)
How do you tx diabetic gastroparesis?
small meals, control sugars, add pro kinetic agents (metoclopramide chronically, erythromycin for flares; domperidone outside of US)
Cirrhosis and COPD, dx?
alpha-1 anti-trypsin deficiency
What three cancers are seen with HNPCC/Lynch? What’s the underlying problem?
Colorectal, endometrial, ovarian; DNA mismatch repair
When do you get a CT scan in pancreatitis?
When you think it’s pancreatitis but the lipase is normal (equivocal)
Transmural tear, mediastinitis, dx?
Boerhaave’s
Guy tries to kill himself by drinking battery acid, what do you do?
protect airway, EGD (to determine severity), maintain NPO (NEVER neutralize or induce emesis)
What is the tx for regular c. diff? severe c. diff?
oral metronidazole; oral vanc + IV metronidazole (attack it from both sides of GI tract - luminal and basolateral)
When do you go to EGD for GERD without alarm symptoms?
after 6 wks of PPI without relief
How do you tx severe refractory ulcerative colitis?
colectomy
Fatty liver on ultrasound but no alcohol or viral hepatitis, dx?
NASH/NAFL (nonalcoholic steatohepatitis/ fatty liver disease)
Paracentesis is done and there are 1000 white cells, 75% polys, what is it?
spontaneous bacterial peritonitis
You suspect Boerhaave’s, what’s the first step?
Gastrograffin (in other cases its usually barium, but gastrograffin is less irritating to the mediastinum if there is a perforation)
How do you diagnose a carcinoid tumor?
5-HIAA in the urine
The question is about jaundice, there is a lot of T bili but very little D bili - what’s the dx?
hemolysis or hematoma
Paroxysmal dysphagia to large caliber food, dx? Tx?
Schatzki’s ring (ring at GE junction); lysis during EGD (“steakhouse dysphagia”)
How do you localize a gastrinoma?
Somatostatin receptor scintillography (SRS)
How do you diagnose acute pancreatitis?
Lipase (greater than 3x ULN)
What is the tx for refractory c. diff?
fidaxomicin (can also try fecal transplant)