Abdo Flashcards
Charcot’s Triad
- Fever
- Abdo pain
- Jaundice
Suggestive of ascending acute cholangitis
Gold standard for GERD
24h pH monitor
Therapy for peptic ulcer disease
Triple therapy: clarithro + amox + ppi
Pancreatitis dx
2/3 of:
- classic epigastric pain
- lipase >3x ULN
- Evidence of pancreatitis on imaging
Pancreatitis tx
- Fluid resuscitation (aggressive)
- Analgesia (IV opioids)
- Gut rest/NPO with slow advancement
Who to treat with asymptomatic bacteruria
Pregnant patients
Patients with upcoming Uro surgery
Complicated UTI
Males
Females >55 with Uro complications
SCI
Most common type of ureteral stone
Ca-Oxalate or Ca-Phosphate
Non radio-opaque renal stones
Uric acid
Indinavir (HIV drug)
CT findings for appendicitis
- Enlarged appendix >6mm with occluded lumen
- Wall thickening >2mm
- Potential fecolith or obstructing structure
- Fat stranding
Diverticulitis recurrence rates
1/3 will have second attack
1/3 of those will have third attack
Pancreatitis mortality measurement
Ranson’s Criteria
- At admission:
- Age in years >55yo
- WBC >16 x10^9
- Blood glucose >10mmol/L
- Serum AST >250 U/L
- Serum LDH >350 U/L
- At 48h
- Calcium (serum <2)
- Hematocrit fall >10%
- Oxygen (hypoxemia PO2 < 60mmHg)
- BUN increased by 1.8 or more mmol/L after IV fluid hydration
- Base deficit >4 mEq/L
- Sequestration of fluids >6L
Vitamin A deficiency symptoms
Night blindness and corneal drying
Vitamin B3/Niacin deficiency symptoms
Diarrhea, dermatitis, dementia
Vitamin B12/Cobalamin deficiency symptoms
Tingling, numbness and spastic paresis
Vitamin C deficiency
Gingival bleeding and hyperkeratosis
Vitamin B2/Riboflavin deficiency
Stomatitis, glossitis, seborrheic dermatitis
Most consistent physical exam finding in patients with portal hypertension
Splenomegaly
Zollinger-Ellison Syndrome
Non-beta islet cell, gastrin-secreting tumour of pancreas
Gastrin –> increase influx of acid into stomach = ulcerative disease
Large multiple ulcers typically in distal duodenum or jejunum
Dx: endoscopy and fasting serum gastrin
Persistent high gastrin despite infusion of secretin (which normally inhibits gastrin secretion)
Tx: high dose PPI and curative sx
Reynaud’s Pentad
RUQ pain Fever jaundice Hypotension Altered mental status Suggestive of suppurative cholangitis
Treatment for primary biliary cirrhosis
Transplant
Ursodeoxycholic Acid can help slow progression (bile acid that helps move bile through the liver)
Crohn’s disease
Transmural
Entire gut (most common location = ileum and ascending colon)
Abdo cramps, non-bloody diarrhea, weight loss
Endoscopy: cobblestoning, ulcers
Histo: Non-caseating granulomas, glands intact
AXR: String sign
Colon CA increase risk if >30% colon involved
Crohn’s disease acute tx
Prednisone 40mg OD
IV methylpred if severe
Crohn’s disease maintenance
5-aminosalycilic acid (Mesalazine)
Cipro or Flagyl in pts who don’t tolerate 5-ASA
Refractory Crohn’s disease tx
Immunosuppression
- Azathioprine
- 6-MP
- MTX
Immunomodulators
- TNF-antagonists: Infliximab, adalimumab
Combo infliximab + azathioprine proven to be more effective together
Derm condition a/w IBD
Erythema nodosum (CD > UC)
Ulcerative colitis tx
5-ASA (mesalamine) for maintenance
Steroids for acute attack
Infliximab (immunosuppresant) + steroid if severe
Azathioprine used in combo therapies typically for maintenance
Colectomy for curative tx
Virchow’s node
Left supraclavicular node a/w gastric CA (Also gallbladder, pancreas, kidneys, testicles, ovaries or prostate CA)
Typically felt in advanced stage
Right supraclavicular node
Drains thoracic malignancies
Dubin-Johnson Syndrome
Benign liver dz distinguished by direct hyperbilirubinemia
Gilbert syndrome
Hereditary dz (auto dom or recessive) Indirect hyperbilirubinemia caused by glucuronosyl transferase activity
Primary sclerosing cholangitis biomarker
ANCA+
Primary biliary cirrhosis biomarker
AMA+
IgM increased
Primary sclerosing cholangitis often a/w ____
ulcerative colitis
PSC tx
Transplant
ERCP for strictures
Wilson’s disease lab finding
Low ceruloplasmin (copper carrying protein)
Wilson’s disease tx
Chelation with D-penicillamine
Maintenance with zinc
HBsAG + Anti-HBc + IgM Anti-HBc + anti-HBs neg HBeAg+ Anti-HBe -
Acutely infected
HBsAg neg
Anti HBc neg
Anti HBs neg
Susceptible
HBsAg + Anti-HBc IgG + IgM anti-HBc neg anti-HBs neg HBeAg+ Anti-HBe -
Chronically infected (high infectivity)
HBsAg neg
anti-HBc pos
anti-HBs pos
Immune due to natural infection
HBsAg neg Anti-HBc neg Anti-HBs pos HBeAg - Anti-HBe -
Immune due to vaccination
Treatment for ascending acute cholangitis
ERCP sphincterectomy
Smoking and Crohn’s
Bad
Smoking and UC
Good
But still advise them to quit
Zollinger Ellison imaging
Somatostatin receptor scintigraphy = detects primary or metastatic lesions in ZES
Gastrinoma a/w increased number of somatostain receptors which can be detected through this test
Radiologic sign of CD
String sign
Radiologic sign of midgut volvulus
Whirlpool sign
Pharmaco tx for alcoholic hepatitis
Steroids
Pentoxyfyllin
PBC serum markers
IgM
AMA+
AI hepatitis serum marers
AST/ALTs in thousands
IgG
ANA+
ASMA+
Hereditary hemochromatosis tx
Venesection and phlebotomy
Chelation with desferrioxamine (usually last line)
Avoid Vit C
PSC serum markers
ANCA+
IGG
AMA
SAAG > 11
Portal HTN related
SAAG < 11
Non-portal HTN related (infection, pancreatitis, TB)
SBP indications
T > 37.8
Abdo pain
Change in mental status
Ascitic fluid PMN count >250 cells/mm3
SBP tx
Discontinue BB
Empiric tx (3rd gen cephalosporin ie. cefotax or CTX)
Tailor tx once cultures back
Typically 5d
IV albumin to decrease renal failure risk
Long-term abx prophylaxis against SBP for these types of patients
Cirrhosis and GI bleeding > 1 epi of SBP Cirrhosis and ascites + impaired renal function or liver failure Can use septra, cipro, norfloxacin Acutely can use Ceftriaxone IV
SAAG > 11 with total protein >25g/L
Cardiac portal HTN
SAAG > 11 with total protein <25g/L
Cirrhosis portal HTN
Abx of choice for gastric paresis secondary to diabetes
Erythromycin
HBsAg + Anti-HBs - HBeAg - Anti- HBe + Anti-HBc IgG
Chronic HBV (low infectivity)
Osmotic agents tx for constipation
Lactulose
Peg 3350
Sorbitol
Mg salts
Stimulant tx for constipation
Senna
Bisacodyl
Bulking agent tx for constipation
Metamucil
Preferred dx modality for PSC
MRCP
Primary biliary cholangitis
AI destruction of INTRAhepatic bile ductules
Unknown cause
Gradual progression to cirrhosis
Primary sclerosing cholangitis
AI inflammation of biliary tract
Unknown cause
Increased incidence of cholangiocarcinoma
Location of bile acid resorption
Terminal ileum
Location of dietary fat resorption
Jejunum
Diagnostic test for achalasia
Esophageal manometry
Barrett’s esophagus follow-up if no dysplasia
Repeat endoscopy q3-5yr
Barrett’s esophagus follow-up if high-grade dysplasia
Regular/frequent surveillance with intensive biopsy, endoscopy ablation/resection or esophagectomy
Barrett’s esophagus follow-up if low-grade dysplasia
Surveillance q6mo-1yr and endoscopic ablation/resection