VIral Hepatitis Flashcards
What is the difference between chronic persistent hepatitis and chronic active hepatitis?
Persistent: lymphocytic infiltration confined to portal triad
Active: lymphocytic infiltration into the hepatic lobule
What is the treatment of fulminant hepatitis with any etiology?
Liver Transplant: occurs so rapidly that cirrhosis is inevitable and liver function is minimal.
Prophylaxis for HAV.
HAV vaccine and globulins
Why is HBV oncogenic?
Incorporates into the hepatocyte cell DNA and runs the risk of altering cell division regulation leading to HCC.
What do high serum HBV DNA levels mean?
Viremia
>10,000 means active replication
What is the window period and how can a physician avoid missing an HBV diagnosis?
Window Period: point in an HBV infection when the HBV sAg and sAb are below detectable levels and the patient appears not infected or exposed at all the the virus.
To avoid missing the diagnosis: check for HBV core IgM which still indicates acute infection.
How do you monitor the risk of HCC in patients with HBV?
With HBV, cirrhosis does not have to precede HCC like in most other disease states.
HCC hepatocytes release the higher alpha-feto protein and this level can be monitored.
Imaging like sonograms can also monitor the liver.
Treatment for chronic HBV infection.
Pegylated INF and protease inhibitors (entecavir)
Treatment for a child born with a mother infected with HBV.
HBV vaccine and immune globulins
Histologic characteristic of hepatocytes infected with HBV.
Ground glass appearance
What is the new rule regulating who should be tested for HCV?
Test everyone in the baby boomer era.
‘45-‘65
What is different in HCC caused by HBV vs. HCV?
HBV: HCC can occur without cirrhosis
HCV: HCC only occurs after cirrhosis
Common derm condition associated with HCV.
Porphyria cutanea tarda: skin blisters due to hemolysis. Normally this condition is genetic but in the case of Hep C it is acquired.
Screening test and confirmatory test for HCV.
ELISA II: screen
RIBA II: confirmation
One condition that must be addressed before treating a HepC infection with INF-alpha.
Psychotic-related illness,
-symptoms exacerbated by INF-a