Unrein: Hepatitis, Cirrhosis, Bugs Flashcards

1
Q

PBC

A

Primary Biliary cirrhosis: destruction of small to medium bile ducts in the liver - see pruritis and jaundice that develop late

  • Primarily a disorder of middle-aged females
  • AMAantibody ;
  • alkaline phosphatase and cholesterol are usually elevated.
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2
Q

PSC

A

Primary Sclerosing Cholangitis:

  • see beading ddx on ERCP- as there is cholestasis w/ fibrosis of bile ducts
  • males ages 20-50
  • ulcerative colitis.
  • PANCA elevation
    • watch for cholangiocarcinoma

ddx with ERCP

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3
Q

Wilson’s disease

A

= high copper levels due to impaired biliary excretion of copper
- mutation in ATP7B

  • causes liver disease and fulminant hepatitis: affects liver, eye, brain
  • male predominance
  • Autosomal recssive
  • Kayser-Fleishcer rings
  • Parkinson’s like tremor
  • Alk phos is low (Zinc is a cofactor in the production of alk phos and is competitively inhibted by copper)

ddx: abased on ceruloplasmin level and increased copper urine excretion

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4
Q

test to confirm wilson disease?

A

urine copper level assay

or

ceruloplasmin (APR, less specific)

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5
Q

serum ascitic albumin gradient is low, while ascites total protein is high

A

in malignant cirrhosis

see albumin in ascites

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6
Q

if have high SAAG and ascites total protein

A

think cardiac ascites

no fibrotic process, still see albumin in blood as well as in the ascites

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7
Q

if SAAG is high and ascites total protein is low

A

due to cirrhotic process

fibrotic process results in albumin not being able to get into the blood, but lots present in ascites

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8
Q

ASMA = Anti-smooth mm. Ab

A

AI Hepatitis

A diagnosis of exclusion – notable is the absence of viral markers.

Often presents with fulminant hepatic enzyme elevation, but not a cholestatic picture.

This disorder is common in perimenopausal women.

60% have other forms of AI diseases : Sjogrens, UC, RA

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9
Q

intrahepatic cholestasis of pregnancy

A

occurs during the second or third trimester, characterized by mild elevations of bilirubin and alkaline phosphatase

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10
Q

HELLP syndrome

A

(Hemolysis, Elevated Liver enzymes, and low platelets): this is a life threatening complication of pregnancy typically occurring in the third trimester and requires urgent delivery.

  • see abdominal pain, nausea, vomiting
  • seen in 10% of pts. w/ preeclampsia (HTN, proteinuria, edema)
  • elevated ALT/AST, platelets<100,000, hemolytic anemia
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11
Q

Acute fatty liver of pregnancy

A

this leads to liver failure with elevated transaminases and an abnormal INR

  • see naysea, vomiting and abdominal pain w/ elevated ALT/AST, Bili>5, prolonged PT time
  • rare
  • microvesicular fatty change

only tx is delivery

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12
Q

hereditary hemochromatosis

A

An iron overload state as the body has no inborn method of iron removal, it is associated with iron deposition on the pancreas, heart, and skin that can lead to diabetes, arrhythmias, and hyperpigmented skin – Bronze Diabetes.

= hyperpigmentation, diabetes, liver cirrhosis, heart problems

DDx w/ transferrin saturation (TIBC)
- preferred over ferritin which is an APR

d/t mutations in C281Y, H63D Responsible for HFE protein

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13
Q

elevated ceruloplasmin

A

wilson’s disease

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14
Q

non-alcoholic steatohepatitis

A
  • fatty liver change in the absence of EtOH - affects 25% of american adults w/ truncal obesity
  • se increased Transaminases: AST<ALT, alk phos and GGT are mildly elevated
  • make sure that alcohol ingestion is less than 20 g/day
  • can progress to fibrosis/cirrhosis

ddx: reqs. liver biopsy

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15
Q

most sensitive marker for acute hep B

A

Anti-HBc IgM

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16
Q

alcoholic liver

A

AST>ALT by 2.0 - 2.5 times is alcoholic etiology until proven otherwise.

Gamma-glutamyltransferase is often elevated disproportionately compared to other enzymes.

often see hyperammonemia, along with flapping tremor

tx of delerium: lactulose

Lactulose helps trap the ammonia (NH3) in the colon.It does this by using gut flora to acidify the colon, transforming the freely diffusible ammonia into ammonium (NH4+) which can no longer diffuse back into the blood

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17
Q

Spontaneous bacterial peritonitis

A

notice sudden increase in abdominal girth - common disease in those w/ cirrhosis and ascites

tx: Abs

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18
Q

portal vv. thrombosis

A

think hepatocellular carcinoma

Hepatomegaly, portal vein thrombosis, or new ascites in someone with chronic hepatitis B is hepatocellular carcinoma until proven otherwise.

19
Q

cholestasis of pregnancy

A

pruritis and jaundice
bile acids elevated, elevated AST/ALT and bili in more severe cases
- common

20
Q

Campylobacter

A
  • most common bacterial pathogen in developed countries
  • watery or bloody diarrhea
  • assoc. w/ undercooked food and milk
  • common traveler’s diarrhea
  • comma shaped, flagetllated gram -
  • ** can cause guillan barre
21
Q

Vibrio cholera

A
  • watery diarrhea that is profuse: can cause hypotension, shock, death
  • comma shaped, gram negative
  • assoc. w/ contaminated drinking water and SHELLFISH
22
Q

Norovirus

A
  • contaminated food and water
  • person to person transmission in close quarters - cruiseships
  • watery diarrhea, nausea, vomiting
23
Q

Shigella

A
  • gram neg.
  • 1 week of bloody diarrhea, fever, ab. pain (reactice arthritis, urethritis, conjunctivitis)
  • waxing and waning sometimes similar to UC
  • disease of children younger than 4 in US
  • ** ABs shorten the course - FQ
24
Q

Clostridium difficile

A

associated with antibiotic use which results in loss of intestinal flora. (often clindamycin)
- gram + rod

ddx: Toxins A and B, PCR

tx: Metranidazole or Vanc (less expensive!)
- latest tx is fecal oral transplant

often see patient bleeding - this is due to Vit K deficiency: Vit K is produced through gut bacteria in patients, which are destroyed when affected by clostridium

25
Q

Giardia lamblia

A

most common parasitic infection and associated with fresh water source, not purified.

  • causes malabsorption, recurrent diarrhea, abdominal pain, fatty diarrhea
26
Q

Entamoeba histolytica

A
  • parasite seen in developing countries
  • can spread to liver, lung and brain
  • presents as bloody diarrhea and w/l
  • see liver absesses + dysentary
  • Mexico, India, colombia

tx: Metranidazole (no booze!!!)

27
Q

Cryptosporidium parvum

A
  • seen in IC individs in the US
  • parasite that also causes diarrhea worldwide

ddx?

  • Partially acid fast positive
  • serological assay for stool Ags
28
Q

other etiologies of diarrhea in IC pts?

A

Crytosporidium

  • isospora/cyclospora
  • CMV!
29
Q

Rotavirus

A
  • common virus in children –> severe watery diarrhea
  • ages 6 mos-24 mos
  • assoc. w/ fever, but no URI
  • Ab confer life-long immunity
30
Q

Adenovirus

A
  • common to cause diarrhea in children - see high fever, sore throat and pharyngitis!
31
Q

EAEC

A

Enteroaggregative E. coli

- nonbloody diarrhea

32
Q

Staph Aureus

A
  • watery diarrhea/vomiting that occurs 2-6 hours after ingestion of improperly cooked/stored food.
33
Q

EHEC

A

Enterohemorrhagic E. coli

  • gram neg. rod
  • obtained through beef
  • causes bloody diarrhea and HUS (O157:H7)
  • common in US
34
Q

EIEC

A

Enteroinvasive E. coli

  • invades epithelial cells and causes fever, pain, diarrhea, dystentary
  • rare in developed world
35
Q

ETEC

A

= “travelers diarrhea”
enterotoxigenic E. coli
- causes watery/secretory, noninflammatory diarrhea
- spread by contaimnated food/water

36
Q

Ab induced diarrhea after 2 doses?

A

clavulanate

37
Q

Listeria monocytogenes

A
  • assoc. w/ unpasteurized milk, raw meat, seafood

- seen in newborns/elderly

38
Q

Schistosomiasis

A

organism causes malaise, diarrhea, weight loss and heptosplenomegaly, not a hepatic abscess.

39
Q

Salmonella Typhi *TQ

A
  • high fever, mucousy/bloody diarrhea, malaise, enlarged spleen, **bradycardia, maculopapular (rose spot) rash on chest and abdomen
  • may mimic appendicitis
  • often seen in travellers to india, mexico, philipines

tx? DO NOT use Abs - prolongs shedding of bacteria

Salmonella osteomyelitis? seen in SS patients

Arthritis syndrome: Reiter syndrome, see uveitis, conjunctivitis, arthritis

40
Q

Bacillus cereus

A
  • fried rice
  • watery diarrhea, intestinal cramping
  • incubation of 12-48 hours
41
Q

Phenolphthalein

A

common ingredient in laxatives for over a century. Either as a weight loss mechanism or an attention seeking behavior, patients may abuse over-the-counter laxatives, a diagnosis of exclusion and easy to miss.

42
Q

Yersinia enterolitica

A

organism presents w/ fever, sore throat, bloody diarrhea, RLQ pain

  • assoc. w/ unpasteurized milk
  • may mimic appendicits and assoc. w/ sore throat
43
Q

CMV

A
  • mild inflamm. diarrhea consistent w/ mucosal ulceration

- seen in IC patients with CD4