Liver Flashcards

(84 cards)

1
Q

how big is the liver?

A

Size of a football

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2
Q

what is one of the primary products of the liver?

A

Bile (80% or > cholesterol)

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3
Q

2 forms of bile

A

conjugated and unconjugated

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4
Q

What are the LFTs?

A

Transamin (SGOT/AST, SGPT/ ALT)

Alkaline phosphatase

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5
Q

What are 2 serum proteins to measure?

A

albumin

prealbumin

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6
Q

what is a coagulation indicator?

A

Prothrombin

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7
Q

what is a good measure of someones nutritional status. Can show if they need artificial nutrition.

A

Prealbumin

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8
Q

Ways to look at the liver

A

Plain films
US (good for hallow vs. solid)
CT of RUQ and abdomen

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9
Q

What is percutaneous transhepatic cholangiograph? (PTC)

A

Puncture through the liver to one of the major vessels and put dye in there to show biliary drainage system.

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10
Q

What is an MRI choloangiopancreatography

A

High resolution, close-up of the main junctions where the cystic ducts and common bile duct join into the ampulla

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11
Q

Invasive tests for liver issues.

A

Needle biopsy
open biopsy
ERCP
surgical exploration & excision

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12
Q

a yellow green coloration of the skin, sclera & mucous membranes. May be associated w/ pruritis

A

Jaundice

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13
Q

Jaundice is detected when bilirubin levels are above what?

A

2.5 mg/100 mL

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14
Q

Mechanisms that can cause jaundice. 6 causes

A

Excessive bilirubin production (pre conjugation)
Decreased hepatic uptake (pre conjugation)
Impaired conjugation
Intrahepatic cholestasis
Extra-hepatic obstruction
Hepatocellular injury

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15
Q

What does indirect bilirubin mean?

A

Unconjugated

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16
Q

if bilirubin is unconjugated will be in the urine?

A

No, urine will be free of bilirubin

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17
Q

What are ways to get excess unconjugated bilirubin (bilirubinemia)?

A

RBC destruction, decreased uptake, concurrent illness

impaired conjugation, hereditary

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18
Q

what can cause conjugated (direct) bilirubinemia?

A

Intracellular, canalicular, ductule, septal, intralobular problems

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19
Q

What is the onset with direct bilirubinemia?

A

Gradual with pruritis

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20
Q

what symptoms will you have with conjugated bilirubinemia?

A

pale stools
dark urine
steatorrhea (odor, float) from lack of fat absorption

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21
Q

What will labs look like with conjugated bilirubinemia?

A

^ Alk phos
mild LFT
normal albumin
coagulopathy

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22
Q

what are symptoms of indirect bilirubinemia

A

anemia on CBC due to RBC destruction

jaundice

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23
Q

How do you revere the coagulopathy found with conjugated bilirubinemia.

A

Vitamin K

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24
Q

what causes extrahepatic obstruction?

A

Stone, stricture, tumor block biliary tree

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25
Signs of extrahepatic obstruction.
GB may be palpable, painless
26
What is a sudden onset of extrahepatic obstruction often associated w/
Colangitis
27
What does extrahepatic obstruction look similar to?
intrahepatic cholestasis
28
What do you see on labs for extrahepatic obstruction
High direct biliruin High alk phos moderate high LFTs
29
What symptoms will someone with extrahepatic obstruction have?
Dark urine pale stools possible coagulopathy
30
Hepatitis picture with prodromal anorexia, nausea, abd pain, malaise. Hepatomegaly, ecchymoses, tender
Hepatocellular dz
31
what will labs look like with hepatocellular dz?
alk phos 2-4x upper limit of normal | LFTs >5x (ULN) (except with Hep C or alcoholism)
32
After 7 days of hepatocellcular dz what will happen?
Coagulopathy due to decreased clotting factors
33
What will happen after 10-14 days of hepatocellular dz?
hypoalbuminemia
34
What can you see with chronic hepatocellular dz.
``` chronic fibrosis portal HTN ascites gynecomastia atrophy of the testes encephalopathy ```
35
Why do you get encephalopathy with hepatocellular dz?
unconjugaeted bilirubin is lipophilic so it can cross the BBB
36
How much of alcoholic cirrhosis is silent?
Up to 40%
37
what do the majority of people with cirrhosis have?
portal HTN
38
what is a codition with excessive levels of iron in blood and body than can damage liver, testes, ovaries, heart.
hemochromatosis
39
What are heredity and metabolic cuases of cirrhosis
Wilson's, Gaucher's Primary biliary cirrhosis (PBC) Faconi's Cardiac
40
what is an inflammatory biliary dz common in women. Need a liver tranplant.
Primary biliary cirrhosis (PBC)
41
signs of chronic viral and alcoholic hepatitis
``` Varices Ascities Hypersplenism peripheral edema encephalopathy ```
42
why is there peripheral edema with chronic hepatitis?
such low protein in blood, so fluid part of blood isn't held in by osmotic pressure and seeps into soft tissue
43
what is the leading cause of death with chronic viral and alcoholic hepatitis
bleed- esophageal varcieal or gastric infection encephalopathy
44
What is there a chronic morality risk of with chronic viral and alcoholic hepatitis?
hepatocellular carcinoma
45
Progressive fibrotic liver disease Associated with other autoimmune disorders Cholestatic and fibrotic manifestations
primary biliary cirrhosis
46
Labs to get with primary biliary cirrhosis
Alk Phos SED/ CRP Anti-Mitochondrial Ab IgM (high)
47
what is the key finding with primary biliary cirrhosis
positive anti-mitro Ab
48
Patient presents with dypnea, arthritis, skin discoloration, fatigue.
hemochromatosis
49
what is a TIPS
Trans hepatic intraperiotoneal shunt | artificial connection b/w portal circulation and systemic circulation to take pressure off portal system
50
how do you treat wilson's
d-penicillamine (chelator)
51
Txs for primary biliary cirrhosis
``` ursodiol colchicine MTX Vit ADK cholestyramine zinc transplant diet ```
52
treatment for hemochromatosis
phlebotomy
53
what are signs of alcoholic liver dz
caput medusa | parotid gland enlargement
54
what is a chemical toxin that farm workers may encounter. causes tumors of the liver
aflatoxin
55
drugs that can cause tumors of the liver
Estrogens anabolic steroids alcohol
56
what type cancer is almost always in someone with hep c
hepatocellcular carincoma
57
what lab is diagnostic for a hepatocellcular carcinoma
alpha fetoprotein
58
How do you get HAV (hepatitis A virus)?
Fecal-oral child care NICU men having sex with men
59
How do you get HAB?
percutaneous perinatal sexual
60
How do you get HCV?
Percutaneous | primarily IVDA
61
What is HDV like?
HBV
62
What is HEV like?
HAV
63
how many binge drinkers develop fatty liver?
90% of binge drinkers
64
who are more susceptible to liver injury with less intake.
women
65
what type hepatitis has a 4-24 week incubation is has an insidious/acute onset
HBV
66
what type hepatitis has a 2-6 week incubation and onset is acute
HAV
67
What type of hepatitis has a 5-10 weeks incubation on insidious onset
HCV
68
do the hepatitis viruses actually kill cells?
No, the body's rxn to the viruses actually do harm
69
what is the pathologic picture of hepatitis
monocyte infiltration cell necrosis hyperplasia & cholestasis
70
Patient presents with Fever, spider angioma, hepatomegaly, splenomegaly, ascites, caput medusa, malnutrition, ecchymoses, parotid enlarge-ment, jaundice, nausea what do you suspect
alcohol harm to the liver
71
what ratio is elevated in alcoholic hepatitis?
ALT/AST >1
72
what will be elevated with chronic alcoholic hepatitis.
MCV (mean corpuscular volume) | cell size is large
73
what drugs can cause cholestatic liver problems?
OCP Erythromycin Tegretol Chloropro
74
What can outdated tetracycline lead to?
Problem with liver
75
what drugs can give you fatty liver
methotrexate | protease inhibitor
76
what drugs can lead to hepatitis
halothane INH keocon verapmail
77
what can you get miex hepatitis/ cholesterol from
azathi niacin statins
78
what drugs can lead to necrosis of liver cells
``` Acetaminophen Carbon Tetetrachloride Amanita (mushrooms) DMF Yellow phosphorus ```
79
What drugs can cause granulomas in the liver?
Sulfonamide allopruinol quinidine (off market)
80
how much time do you have to give antidote for acetamenophen OD?
17 hours
81
treatment for hep b and D
Interferon, Lamuvidine
82
treatment for hep c
Interferon, Ribavirin
83
treatment for hep A and E
supportive
84
ABCDEF pneumonic for fulminant hepatitis
Acetaminophen Hep A autimmune hept Het B Hep C cryptogenic Hep D, drugs Esoteric causes- wilson's Budd-Chiar syndrome Fatty infiltration- acute fatty liver preggo, Reye's