Hepatitis Flashcards
HAV transmission
Fecal-oral
Person to person or consuming contaminated food or water
Prevention Hep A and B
Vaccination most effective prevention
HAV S&S
Starts with constitutional symptoms: n/v, malaise, fever, anorexia, diarrhea, myalgia
Following constitutional s&s: jaundice, dark-colored urine, light-colored stool, abd tenderness, hepatomegaly, splenomegaly
Tx HAV
Self limiting virus
Supportive tx
HBV Transmission
Percutaneouus or mucosal contact with infected blood or body fluids
Sexual contact
Sharing needles
Birth to an infected mother
Contact with blood or open sores of infected person
Needle stick from infected person
Sharing razors, toothbrushes, etc with infected person
HBV Risk Factors
Being born to an infected mother Having infected sex partners Sexually active persons not in long-term, mutually monogamous relationship Men having sex with men Injection drug users Household contacts of an infected person Healthcare workers HD pts
HBV S&S
Fever Fatigue Loss of appetite Nausea Vomiting Abdominal pain Dark urine Clay-colored bowel movements Joint pain Jaundice
HBV Acute vs Chronic
Can be acute or chronic
Acute can last up to 6 months
Risk for becoming chronic depends on age at infection, younger children at greatest risk
HBV Tx
Supportive
HVC Transmission
Primarily through repeated percutaneous exposures to infectious blood:
Injection drug use (currently the most common means of HCV transmission in the United States)
Receipt of donated blood, blood products, and organs (once a common means of transmission but now rare in the United States since blood screening became available in 1992)
Needlestick injuries in health care settings
Birth to an HCV-infected mother
Can also infrequently be transmitted through:
Sex with an HCV-infected person (an inefficient means of transmission)
Sharing personal items contaminated with infectious blood, such as razors or toothbrushes (also inefficient vectors of transmission)
Other health care procedures that involve invasive procedures, such as injections (usually recognized in the context of outbreaks)
HCV S&S
Usually asymptomatic or mild but other symptoms can occur Fever Fatigue Dark urine Clay-colored stool Abdominal pain Loss of appetite Nausea Vomiting Joint pain Jaundice
HCV Tx
boceprevir (Victrelis™) and telaprevir (Incivek™) (both protease inhibitors)
Sofosbuvir (Sovaldi™) is a nucleotide analogue inhibitor of the hepatitis C virus
and Simeprevir (Olysio™) is a protease inhibitor that blocks a specific protein needed by the hepatitis C virus to replicate
Conditions that can occur d/t HCV
Diabetes mellitus, which occurs three times more frequently in HCV-infected persons
Glomerulonephritis, a type of kidney disease caused by inflammation of the kidney
Essential mixed cryoglobulinemia, a condition involving the presence of abnormal proteins in the blood
Porphyria cutanea tarda, an abnormality in heme production that causes skin fragility and blistering
Non-Hodgkins lymphoma, which might occur somewhat more frequently in HCV-infected persons