FINAL 02 - Viral Hepatitis and Gastroenteritis Flashcards
A systemic disease primarily involving the liver; produces acute inflammation of the liver
Viral hepatitis
Hepatitis wherein more extensive damage may occur that prevents orderly liver cell regeneration
Fulminant hepatitis
Chronic carriers of __________ may or may not have demonstrable evidence of liver disease
HBsAg
Hepatitis that is a mild benign disease; characterized by abnormal aminotransferase values and hepatomegaly
Persistent (Unresolved) viral hepatitis
Hepatitis characterized by inflammation and necrosis to collapse of the normal reticulum framework
Chronic active hepatitis
A member of the Picornaviridae family; causes hepatitis A; transmitted through the fecal-oral route (Types of hepatitis virus)
Hepatitis A virus (Enterovirus-72)
Hepatitis A virus is a member of the __________ family
Picornaviridae family
Hepatitis A virus causes __________
Hepatitis A (Infectious hepatitis)
Refers to the Hepatitis A virus (Hepatitis A laboratory findings)
HAV
Refers to the antibody to HAV (Hepatitis A laboratory findings)
Anti-HAV
Refers to the IgM class antibody to HAV; indicates recent infection with hepatitis A (Hepatitis A laboratory findings)
IgM anti-HAV
Prevention for Hepatitis A virus
Inactivated vaccine
A member of the Hepadnaviridae family; causes hepatitis B (Serum hepatitis); has reverse transcriptase; transmitted parenterally (Types of hepatitis virus)
Hepatitis B virus
Hepatitis B virus is a member of the __________ family
Hepadnaviridae family
Hepatitis B virus causes __________
Hepatitis B (Serum hepatitis)
Hepatitis B virus has __________, which means it replicated through intermediate RNA, resembling a retrovirus
Reverse transcriptase
Virion of Hepatitis B virus
Dane particle
Refers to the irreversible fibrosis (scarring) of the liver
Liver cirrhosis
People with Hepatitis B are at a higher risk of developing __________
Hepatocellular carcinoma
Refers to the hepatitis B virus (Hepatitis B laboratory findings)
HBV
Refers to the hepatitis B surface antigen (Hepatitis B laboratory findings)
HBsAg
Refers to the hepatitis B e antigen (Hepatitis B laboratory findings)
HBeAg
Refers to the hepatitis B core antigen (Hepatitis B laboratory findings)
HBcAg
Refers to the antibody to HBsAg; indicates past infection and immunity to HBV (Hepatitis B laboratory findings)
Anti-HBs
Refers to the antibody to HBsAg (Hepatitis B laboratory findings)
Anti-HBs
Refers to the antibody to HBeAg (Hepatitis B laboratory findings)
Anti-HBe
Refers to the antibody to HBcAg; indicates infection with HB at some undefined time in the past (Hepatitis B laboratory findings)
Anti-HBc
Refers to the IgM class antibody to HBcAg; indicates recent infection with HBV (Hepatitis B laboratory findings)
IgM anti-HBc
A general marker of infection; presence indicates current infection; absence may indicate lack of infection, past infection, or immunization
HBsAg
3 treatments given for chronic Hepatitis B infection (PET)
Pegylated interferon alfa-2a, Entecavir, Tenofovir
Hepatitis B vaccine given to all newborns
Hepatitis B subunit vaccine (HBsAg)
Hepatitis B vaccine given to newborns of infected mothers or within 14 days after sexual exposure
Hepatitis B immunoglobulin (HBIG)
Hepatitis C virus is a member of the __________ family, but it is not vector-borne
Flaviviridae family
Hepatitis C virus causes __________
Hepatitis C/Non-A hepatitis/Non-B hepatitis/Posttransfusion hepatitis
Refers to the Hepatitis C virus (Hepatitis C laboratory findings)
HCV
Refers to the antibody to HCV (Hepatitis C laboratory findings)
Anti-HCV
Treatment for Hepatitis C (PR)
Pegylated interferon-alfa + Ribavirin
A member of the Deltaviridae family; a defective virus dependent on coinfection with HBV; causes hepatitis D (Types of hepatitis virus)
Hepatitis D virus
Hepatitis D virus is a member of the __________ family
Deltaviridae family
An agent of the Hepatitis D virus that contains delta antigen (HDAg) surrounded by an HBsAg envelope
Delta agent
Hepatitis D virus causes __________
Hepatitis D (Delta hepatitis)
A severe acute infection; refers to fulminant hepatitis (Clinical findings of Hepatitis D virus)
Coinfection
Refers to progression to cirrhosis (Clinical findings of Hepatitis D virus)
Superinfection
Refers to the Hepatitis D virus (Hepatitis D laboratory findings)
HDV
Refers to the delta antigen; detectable in early acute HDV infection (Hepatitis D laboratory findings)
HDAg
Refers to the antibody to delta-Ag; indicates past or present infection with HDV (Hepatitis D laboratory findings)
Anti-HD
A member of the Hepeviridae family; causes hepatitis E; responsible for a mortality rate in excess of 20% in pregnant women (Types of hepatitis virus)
Hepatitis E virus
Hepatitis E virus is a member of the __________ family
Hepeviridae family
Hepatitis E virus causes __________
Hepatitis E (Enterically transmitted hepatitis)
Anti-HAV IgM positive is interpreted as _________ (Serologic markers of hepatitis)
Acute infection with HAV
Anti-HAV IgG positive is interpreted as __________ (Serologic markers of hepatitis)
Past infection with HAV
Anti-HCV positive is interpreted as __________ (Serologic markers of hepatitis)
Current or past infection with HCV
Anti-HD positive, HBsAg positive is interpreted as __________ (Serologic markers of hepatitis)
Infection with HDV
Anti-HD positive, anti-HBc IgM positive is interpreted as __________ (Serologic markers of hepatitis)
Coinfection with HDV and HBV
Anti-HD positive, anti-HBc IgM negative is interpreted as __________ (Serologic markers of hepatitis)
Superinfection of chronic HBV infection with HDV
A clinical syndrome which includes not only diarrhea, but also other symptoms like abdominal pain, nausea, and vomiting
Gastroenteritis
About 90% of causes of acute viral gastroenteritis are caused by either the __________ or __________ (RN)
Rotavirus, Norovirus
The most common cause of viral gastroenteritis; is wheel-shaped; is a member of Reoviridae family
Rotavirus
The rotavirus is ________ shaped
Wheel-shaped
The rotavirus is a member of the __________ family
Reoviridae
Oral live attenuated rhesus-based rotavirus vaccine; withdrawn due to incidence of intussusception (Rotavirus vaccine)
RotaShield
Oral live attenuated pentavalent human-bovine reassortant rotavirus vaccine; 3 dose series from 6-32 weeks (Rotavirus vaccine)
RotaTeq
Oral live attenuated monovalent human rotavirus vaccine; 2 dose series from 6-24 weeks (Rotavirus vaccine)
Rotarix
A member of Caliciviridae family; the most important cause of viral gastroenteritis (winter vomiting disease) in adults
Norovirus/Norwalk virus
The norovirus is a member of the __________ family
Caliciviridae family
Norovirus is the most important cause of __________ in adults
Epidemic viral gastroenteritis (Winter vomiting disease)
A family of viruses that has a starlike morphology; causes sporadic cases of viral gastroenteritis
Astroviridae