NUR 4227 Lecture Notes - Lecture 10: Itch, Gallstone, Melena
Document Summary
Inflammation of the liver: causes, viral (most common, alcohol, medications, chemicals, autoimmune diseases, metabolic abnormalities, types of infectious viral hepatitis, a, b, c, d, e, g, other viruses, cmv, ebv, hsv, coxsackie virus, rubella. Igg anti-hav: indicator of past infection: presence of igg antibody provides lifelong immunity. Past hbv infection: with chronic infection, liver enzyme values may be normal or (cid:313), 15% to 25% of chronically infected persons die from chronic liver disease. In north america, approximately 0. 5% of the population are hbv carriers; in parts of asia, the rate is approximately 8% to 10%: 20% become chronic, transmitted percutaneously, risk factors. Hepatitis d: also called delta virus, defective single-stranded rna virus, cannot survive on its own, requires hbv to replicate, transmitted percutaneously, no vaccine. Hepatitis e: rna virus, transmitted via fecal-oral route, most common mode of transmission: drinking contaminated water, occurs primarily in developing countries, few cases in united states.
