Flashcards in Hepatitis Pathophys Deck (44)
What is the sequence of events in viral hepatitis?
1) Acute Hepatitis
2) Acute Liver Failure
3) Chronic Hepatitis
Once you get chronic hepatitis what happens
you get cirrhosis, liver failure, and/or hepatocellular carcinoma
Hepatitis A and E mostly cause what
HBV mostly causes what
Acute hepatitis like A and E. The difference is that there is a greater chance that B can lead to fulminant liver failure.
A small percentage of HBV causes chronic hepatitis. This is mostly in the presence of Hep D
HCV causes what
hepatits pts will, of course, have an acute rise in liver enzymes (AST and ALT)
Constitutional symptoms of acute hepatitis?
fever, fatigue, abdominal pain
High AST/ALT is what levels?
1,000 - 5,000....usually doesnt exceed 5,000
Most serious complication of acute viral hepatitis
Fulminant liver failure
Presentation of fulminant liver failure
altered mental status in pt with acute hepatitis.
The altered mental status is due to the hepatic encephalopathy
Fulminant liver failure mortality rate is close to 90%
Key test for Hepatitis A diagnosis?
IgM anti-HAV antibody
Key test for HEV
IgM anti-HEV antibody
Chronic HBV represents a vital public health problem for which part of the american population
Asian Americans...HBV is endemic to many parts of Asia
Positive HBsAg means what?
Positive HBsAg antibody means what?
resolved infection or prior vaccination
Positive HBc antibody means what?
Definitely have been infected in the past...this does not show up with a vaccination
Positive HBe antigen means what?
Active replication and highly infectious
In patients with chronic HBV, what serological (plasma or serum) markers are detectable for life?
HBsAG and IgG for HBc
When is it appropriate to start treating chronic HBV?
When there is evidence of liver injury....meaning high ALT
What are the treatment goals of chronic HBV tx?
Decrease replication and minimize liver injury.
Reduce the risk of Hepatocellular carcinoma
Unfortunately, chronic HBV can only be cured in approximately 5-10% of pts.
All HIV fts should be tested for HBV. There chance of natural clearance is lower
ok....the good news is that some anti-HIV drugs, like Tenofovir, are also anti-HBV.
HBD is transmitted parenterally or enterically>
Parenterally...Needs the HBsAG to infect
When a person with CHRONIC HBV becomes infected with HDV
Just acute HBV and HDV infection occuring simultaneously
New CDC recommendation for HCV screening?
Anyone born between 1945 and 1965
Regarding HCV serotypes, the most prevalent in the US is
HCV 2 where
Developed countries (US included)
IV drug users
Middle East and North Africa