Gastroenterology Flashcards

1
Q

Severe secretory diarrhea and flushing. (1) What is diagnosis? (2) What test would you order

A

(1) Carcinoid Syndrome (2) 24-hr urinary excretion of 5-HIAA

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2
Q

Whipple Disease

  • symptoms
  • how to diagnose
  • length of treatment
A
  • arthralgia, fever, neurologic, ocular, cardiac disease
  • small bowel biopsy and PCR for Tropheryma whippelii
  • Antibiotics for 12 months (1 year)
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3
Q

When to use SBT prophylaxis in cirrhosis with ascites?

A
Total prot <1.5 g/dL 
PLUS one: 
- Na =/<130 
- Cr =/> 1.2 mg/dL 
- BUN =/>25 
- Tbili =/> 3 mg/dL
- Child Pugh class B or C
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4
Q

Treatment of amebic liver abscess

A

Metronidazole and paromycin

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5
Q

Treatment of functional dyspepsia

A

TCA (>SSRI, SNRI)

Must have at least 4 week trial of PPI, negative h pylori, no structural disease

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6
Q

What is Meltzer triad? Significance? Treatment ?

A

asthenia (weak/lack energy), arthralgia, and palpable purpura—which is the classic presentation of type II mixed cryoglobulinemia, a vasculitis that most often arises in the context of chronic hepatitis C virus (HCV) infection. Treat HCV!

Harvoni= sofosbuvir-ledipasvir. (to treat genotype 1 HCV include grazoprevir-elbasvir; paritaprevir-ritonavir, ombitasvir, and dasabuvir; glecaprevir-pibrentasvir; sofosbuvir-daclatasvir; and sofosbuvir-velpatasvir.)

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7
Q

Tx of microscopic colitis ? (Lymphocytic or collagenous)

A
  1. DC offending agent - NSAID, SSRI, PPI
  2. Supportive - loperamide, bismuth
  3. Budesonide

No increased risk of cancer

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8
Q

Melanosis Coli

A

Benign pigmentation of the colon caused by chronic senna use

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9
Q

Indication for colon resection in diverticulitis?

A

After 2nd episode. As risk of subsequent attacks increase by 50%

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10
Q

When is HBIG + Hep B vaccine indicated?

A
  • Post exposure prophylaxis after needle stick injury

- for sexual and household contacts of patients with HBV

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11
Q

When to treat for HBV? What to use for treatment?

A

Tenofovir (preferred) or entecavir
pgylated interferon can be used in patients without cirrhosis, with high ALT, low HBV DNA levels
(Treat when elevated AST/ALT and HbeAg+ (with HBV dna >20,000) or HBeAg - (with HBV dna >2,000)

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12
Q

What disease is associated with Leukocytoclastic vasculitis?

A

HCV! (Palpable purpura).

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13
Q

When is prednisolone indicated for alcoholic hepatitis?

When is it contraindicated?

A
  • MDF (maddery discriminators function) >/= 32 ..or..
  • MELD >/= 18 …or…
  • encephalopathy and ascites
    ——————
    Don’t use if - AH + GIB, infection, pancreatitis, or kidney disease
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14
Q

autoimmune hepatitis

  • demographic
  • possible Antibodies
  • Treatment?
A
  • females 20-40yo
  • *ANA, *anti smooth muscle (also p-ANCA, anti-LKM I antibody)
  • Tx glucocorticoids and azathioprine
    (Hint* high serum prot + low serum albumin = elevated serum gamma globulin, may be only clue to hypergammaglobulinemia)
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15
Q

which joints affected in Hemochromatosis?

What are other symptoms

A

2nd and 3rd MCP - destructive arthropathy with hook-like osteophytes
(ED, fatigue, DM, HF, hyperpigmentation (bronze skin), panhypopit)

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16
Q

How to diagnose hemochromatosis

How to treat it

A

Serum transferrin >55%
Genetic - C282Y homozygous or C282Y/H63D heterozygous HFE genotypes
_____
If elevated transferrin —> tx with phlebotomy
If +genetics but normal transferrin, just monitor

17
Q

PSC (primary biliary cholangitis)

  • demographics
  • diagnostic triad
  • complications
  • treatment
A
  • women 40-60yo
  • cholestatic liver profile, +anti mitochondrial AB, granulomatous inflammation centered on septal bile duct
  • may have fat soluble vitamin deficiency, osteoporosis, or osteomalacia
  • to urosodeoxycholic acid
18
Q

PSC (primary sclerosis cholangitis) surveillance screening

A

(Progressive bile duct destruction and biliary cirrhosis) 80% have IBD (UC)
- US and with intrahepatic dilation —> ERCP/MRCP to diagnose (“string of beads” pattern)
- Risk of developing cholangiocarcinoma, gallbladder carcinoma, colon cancer
—> colonoscopy q1-2 years beginning at dx of PSC
—> annual MRCP and CA-19-9 for cholangiocarcinoma sure

19
Q

How to treat Amanita poisoning?

A

(Mushroom ingestion causing acute liver failure)

Thx - penicillin G or silymarin

20
Q

Treatment of Wilson’s disease

A

Chelation with trientine or penicillamine

21
Q

What is AFLP? (Acute fatty liver of pregnancy)

A

HELLP + encephalopathy + prolonged INR
ALT 200-1000
Management — delivery

22
Q

What medication causes sprue-like enteropathy?

A

Olmesartan