NSG 210 Test 3 Study Guide

There is no antidote tx few tx options are available

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Unformatted text preview: indicator that a pt has been exposed to HBV. If HBsAg is present 6 months or longer after acute infection, the pt is considered a carrier. The pt will continue to be infectious as long as HBsAg is present in blood.  ­Presence of anti ­HBc (antibody to core antigen of HBV) may indicate continuing HBV in liver  ­An increase in liver enzymes & bilirubin would be present Prevention  ­Screening of blood donors for presence of HBV.  ­Use of disposable syringe & needleless IV administration sets  ­Standard precautions should be used by all lab & healthcare personnel  ­HBV vaccines (Recombivax B or Engerix B) are available & are administered IM in 3 doses. It may also be given in combination w/ HAV vaccine (Twinrix).  ­HBV vaccinations are now universal for children in the US. Others who should receive the vaccine include healthcare & lab personnel, hemodialysis pts, pts w/ chronic liver disease or HCV, ppl who are sexually active or have an STD, IV/injection drug users & other immunocompromised ppl.  ­HBV immune globulin (HBIG) provides passive immunity to HBV & is indicated for ppl exposed to HBV who have never had HBV or had the vaccination. Tx: Includes drug therapy, bed rest & adequate nutrition  ­Drug Therapy: anti ­virals, anti ­emetics & antacids may be used Interferon: an anti ­viral that is the first line therapy for pts w/ no cirrhosis dx. It is administered via injection & can cause significant side effects Lamivudine (Epivir) & adefovir (Hepsera) are 2 anti ­virals that have been approved for use in pts w/ cirrhosis & chronic HBV. Hepsera is considered the first choice therapy for pts w/ dx of cirrhosis....
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