GI Flashcards
Cholelithiasis Hx, Dx, Tx
Hx: Fat, Female, Forty Colicky Abdominal pain, RUQ Radiates to the shoulder Worse with fatty foods Dx-RUQ US shows gallstones Tx: Elective cholecytectomy Ursodeoxycholic acid
Cholecystitis Hx
Obstruction of the cystic duct
Hx- Constant Pain
Positive murphys sign
Mild Fever
Cholecystitis Dx Workup and findings
Dx- RUQ US
Pericholecystic fluid with thickened gallbladder wall
HIDA Scan shows perfusion
Cholecystitis Tx
NPO
IV Fluids
IV ABx
Cholecystectomy (Urgent)
Choledocholithiasis Hx
Gallstones in CBD
Possible hepatitis and pancreatitis
Hx: Painful jaundice, positive murphy sign
fever leukocytosis
Choledocholithiasis Dx Workup and findings
RUQ US- obstruction with dilated ducts
MRCP
Elevated AST, ALT, AMylase, Lipase
Choledocholithiasis Tx
ERCP (urgent)
Cholecystectomy Electively
NPO, IV Fluids, Abx
Cholangitis Charcot’s Triad
RUQ pain
Jaundice
Fever
Cholangitis Reynolds Pentad
Hypotension AMS RUQ Pain Jaundice Fever
Cholangitis Description
Gall stone in the CBD plus an infection
Cholangitis Dx, Tx
Dx- RUQ US shows dilated ducts
Tx: ERCP Emergently
IV fluids, NPO, Abx
Cholecystectomy Urgently
What antibiotics should you use in gall bladder disorders
Ciprofloxacin +MTZ
Ampicillin, gentamicin + MTZ
Esophagitis Etiology (PIECE)
Pill induced Infectious Eosinophilic Caustic gErd
Esophagitis Pt Hx, Dx
Odynophagia or dysphagia
Dx: Endoscopy with biopsy
PPI
Pill induced Esophagitis Hx, Dx, Tx
NSAID, Tetracycline, Bisphosphonates, HAART
Dx- Endoscopy with biopsy
Tx: Remove offending agent
Time+ PPI
Eosinophilic Esophagitis Hx, Dx, Tx
Hx- Allergic reaction, asthma, atopy, allergies
Dx: EGD with biopsy - >15 eo hpf
Tx-PPI
if PPI fails -> Oral aerosolized steroids
Caustic (ingestion) Esophagitis Hx, Dx, Tx
Hx- Hoarseness, stridor, Intubate
Dx: EGD
Tx: Low severity, liquid diet
High severity- NPO for 72 hours EGD
What should you not do in a circumstance of caustic ingestion
Never neutralize the pH
Never Induce Emesis
Achalasia Etiology
Absent Myenteric plexus
LES cannot relax
Achalasia Hx, Dx, Tx
Mid-sternal Globus sensation Dx- Barium Swallow, Birds beak Manometry EGD with Bx to rule out cancer Tx: Myotomy Botlinum if terrible surgical candidate
Scleroderma CREST
Calcinosis Raynauds Esophageal dysmotility Sclerosis Telangiectasias
Scleroderma Esophageal dysmotility Dx, TX
Dx: Barium
Manometry
EGD With Bx
Tx: PPI
Diffuse Esophageal spasm Hx
Pt: MI Sx better with CCB
Diffuse Esophageal spasm Dx
Dx: Rule out MI
Barium (Corkscrew Esophagus/Beads on a string)
Manometry
EGD with Bx
Diffuse Esophageal Spams Tx
CCB
Nitrates as needed
GERD presentation
Typical- Burning chest pain Worse by layng down worse with spicy foods Better with Antacids, Sitting up Atypical- Hoarseness, Coughing, Stridor nocturnal Asthma
GERD Dx workup
PPI and lifestyle modifications for six weeks
if that fails EGD with Bx
if with ALARM symptoms perform EGD first
GERD Metaplasia Tx
High dose PPI
GERD Dysplasia Tx
Local Ablation
GERD Adenocarcinoma
Resection
H. Pylori When do you use Serology testing
When patient has not been treated for H. Pylori and is not on a PPI
H. Pylori when to use urea breath test
To make the initial diagnosis of H. Pylori
H. Pylori Stool antigen
used to confirming eradication
Best test for H. Pylori Diagnosis
EGD with Bx
H. Pylori treatment
Clarithromycin, amoxicillin, PPI
can use MTZ if penicillin allergy
Zollinger- Ellison Syndrome Etiology and Hx
Gastrinoma
Big virulent, refractory ulcers and diarrhea
Zollinger-Ellison Syndrome Gastrin testing and Dx workup, Tx
Gastrin levels Normal <250 Confirmed >1600 between 250-1600 perform Secretin stimulation test use SRS to find gastrinoma Tx- Resection
Gastroparesis Pt Hx
Patient with diabetes, chronic nausea/vomiting, abdominal pain with eating, peripheral neuropathy
Gastroparesis Dx, Tx
Dx: EGD, Emptying Study
Tx: Avoid Opiates, anticholinergics
Maintain good glucose control, low fiber small volume meals
Gastroparesis emptying study
must be off opiates with good glucose control
>60% left after 2 hours
>10% left after 4 hours
Enterotoxic causes of acute diarrhea (watery)
Watery diarrhea C. Diff ETEC Vibrio S. Aureus B. Cereus Giardia
Invasive causes of acute diarrhea
Bloody diarrhea with fever, leukocytosis, fecal WBCs
Salmonella (chicken)
HUS -shigella, EHEC 0157:H7 (uncooked meat)
C. Jejuni
A. Histolytica (HIV/AIDs)
Most common cause of acute diarrhea
Viral gastroenteritis
Signs and symptoms of acute diarrhea not caused by virus
Bloody diarrhea Duration >3 day Hospitalized High fever >104 Severe abdominal pain Immunocompromised
C. Diff Dx, Tx
Dx- PCR (NAAT)
Tx: Oral vancomycin, for severe cases
Fidaxomycin for refractory cases/recurrent cases
add metronidazole if others are not available or resistant to monotherapy with VANC
all else fails stool transplant
Acute diarrhea work up if not viral
Stool WBC, RBC
Stool WBC/ RBC negative
Enterotoxic causes
perform ova parasite
Stool WBC/RBC positive
Invasive organism
Perform stool Cx and colonoscopy
Acute Diarrhea
Stool Cx postive
Colonoscopy negative
treat with antibiotics
Chronic diarrhea causes to rule out
laxative abuse medication C. Diff Lactose intolerance Celiac Sprue
Chronic Diarrhea Work-up
Fecal WBC/RBC
Fecal Osm
Fecal Fat
NPO
Chronic diarrhea inflammatory work up
Colonoscopy with biopsy
Secretory Chronic diarrhea workup
Hormones
EGD with Bx
VIPoma work up
Chronic diarrhea
VIP level
Resection
Carcinoid GI
Excess Serotonin
Diarrhea and flushing
5HIAA in the urine, CT scan
Resection
Malabsorption presents
Depending on the area of malabsorption there will be extra intestinal manifestations
Duodenal malabsorption
Folate-Macrocytic Anemia
Iron- Microcytic Anemia
Calcium- Osteporosis
Terminal ileum Malabsorption
Bile salts Fat soluble vitamins
B12
Fat soluble vitamins deficiency manifestations
A-Night blindness
D-Osteoporosis
E-Nystagmus
K-Bleeding
Celiac Sprue Pt, Hx
Gluten allergy, IgA Mediated
Hx: Diarrhea, Bloating, Weight loss, Dermatitis Herpatiformis
Celiac Sprue Dx, Tx
Serology- TTG, Endomysial Ab
EGD with Bx - Blunting of the villi
Tx: Avoid gluten
Whipples Disease Hx, Dx, Tx
Malabsorption-diarrhea with brain, joint, and LN manifestations
Dx: EGD with Bx
Tx: TMP-SMX
Doxycycline
Diverticulosis Hx
Chronic constipation
>50 year old
Low fiber and veggies diet
high red meat diet
Diverticulosis Dx, Tx
Dx: colonoscopy
Tx: increase fiber, fruits and vegetables in the diet
Sx of uncomplicated diverticulosis
Postprandial LLQ pain
relieved by bowel movement
Tx: Increase fiber
Diverticulitis Pt Hx
Left sided appendicitis constant LLQ pain Fever Leukocytosis Tender
Diverticulitis Dx
X-ray to rule out perf
CT IV contrast abdomen
Diverticulitis Tx Mild
Liquid diet, Oral ABx
Diverticulitis Tx Severe
NPO, IV ABx
Diverticulitis Tx Abscess
NPO, IV ABx, Drain
Diverticulitis Tx Perforations
Ex lap, IV ABx
Refractory Diverticulitis Tx
Hemicolectomy
ABx to use with diverticulitis
gentamycin-ampicillin, MTZ
Ciprofloxacin, MTZ
Diverticular hemorrhage Hx, Dx, Tx
Painless hematochezia
Dx: Colonoscopy
Arteriogram
Tx: Embolize
Colon Cancer screening time for Low risk, Who is low risk
1 or 2 polyps, <1 cm, tubular, low grade
every 5-10 years
Colon cancer screening time for High Risk, Who is high risk?
> 3 polyps, >1 cm, Villous, high grade
every 1-3 years
Colon cancer screening, very high risk
> 10 polyps
every 2-6 months
Familial adematous polyposis
APC gene
Thousands of polyps young patient
Tx: Prophylactic colectomy
start screening 10 or 12
Lynch Syndrome, HNPCC -screening, diagnosis
Screen 20-25 years old
3 Cancers, 2 generations, 1 premature
Cancers in Lynch Syndrome
Colorectal
Endometrial
Ovarian
Wilsons Disease hx, Dx, Tx
Chorea, cirrhosis, kaiser fleischer rings Dx: Slit lamp Ceruloplasmin Bx Tx: Penacillamine Transplant
Hemochromatosis Hx, Tx, Dx
Bronze DM (hyperpigmentation) DIA CHF Cirrhosis Dx: Ferritin >1000 Transferrin >50% Bx Tx: Phlebotomy
Alpha 1 Antitrypsin Deficiency
Young patient with COPD
Dx: Bx PAS + Macrophages
Tx: Transplant
Primary Sclerosing Cholangitis Hx, Dx, Tx
Associated with UC Male, pruritus, painless jaundice, 30-50 years old Dx: MRCP= beads on a string Bx: Onion skin fibrosis Tx: transplant
Primary Biliary Cirrhosis Hx, Dx, Tx
Women, Pruritus, Jaundice painless
Bx
Transplant
Esophageal Varices Dx,
EGD
Esophageal varices Tx Active Bleeding
Banding
Esophageal varices Tx
Beta blockers
Esophageal varices Tx reccurent bleeding
TIPs
Ascites fluid SAAG > 1.1 causes
RHF, Cirrhosis
Ascites Fluid SAAG < 1.1
TB, CA
Ascites Dx, Tx
Dx: Paracentesis Tx: Furosemide Spironolactone Fluid restriction Therapeutic paracentesis
Spontaneous Bacterial Peritonitis Hx, Dx, Tx
Hx: Asx, Fever and abdominal pain
Dx: Paracentesis leukocytes >250
Tx: IV ceftriaxone
GI Bleed work up
- Stabilize
- EGD
- for lower GI bleed depends on rate of bleeding
GI bleed stabilization process
2 large bore IVs IV fluids IV PPI TypenX Call GI
No active bleed lower GI
Colonoscopy
Brisk bleeding lower GI
Arteriogram
Ongoing bleeding Lower GI
Tagged RBC Scan
what do you do if you still cant find the GI bleed
Pill cam endoscopy
Causes of upper GI bleed
Varices PUD Mallor-Weiss Tear Boorheaves Dielofoy
Causes of Lower GI Bleed
Hemorrhoids
Ischemic Colitis
Diverticular Hemorrhage
Mesenteric Ischemia
Hemorrhoids internal/external
Internal Painless bleeding
external pain without blood
Mesenteric Ischemia Hx, Dx, Tx
Gut attack patient is a vasculopath, A-fib Pain out of proportion to PE Pain with eating, weight loss Dx: Angiogram Tx: Resection/revascularization
Ischemic Colitis Hx, Dx, Tx
Watershed areas
Hx: Hypotensive, Painful BRBPR
Dx: Colonoscopy
Tx: Supportive
Pancreatitis Hx
Epigastric pain radiating to the back
Positional pain
N/V/A
Pancreatitis Dx
Lipase 3x ULN
if lipase is negative CT scan
Pancreatitis Tx
NPO IV fluids Analgesia refeed on request ERCP for gallstones Meropenum for ABx
Pancreatitis early complications
1-3 days ARDS Saponification pleural effusion ascites
Pancreatitis mid complications
1-3 weeks
Infection
Pancreatitis Late complications
3-7 weeks
Abscess - drain
Pseudocyst
Pseudocyst Tx <6cm, <6wks old
Watch and wait
Pseudocyst Tx >6 cm, >6wks old
Drain with Bx
Ulcerative Colitis
Description
Continuous lesions, affects the rectum stays in the colon
Superficial, Crypt abscesses
Bloody diarrhea
increased risk for CRC
Crohns Disease
Description
Skip lesions can affect any part of the GI tract
Transmural inflammation, Non caseating Granulomas
Watery Diarrhea with weight loss
Crohns Extra intestinal manifestations
Fistula formation
B12, fat malabsorption, iron deficiency
Tx Mild IBD
5 ASA compounds - UC
Mesalamine
Tx Moderate IBD
Immune modulators
6 MP, Azathioprine
Tx Severe IBD
TNF inhibitors
Steroids, ABx
For UC - Surgical resection
Antiobiotics to use in IBD
Ciprofloxacin, MTZ
Conjugated Jaundice Urine
Dark Urine
Unconjugated Jaundice Urine
Kernicterus, Urine is normal
Causes of Painless Jaundice
Cancer
Stricture
PSC
PBC