Hepatitis A testing Los Angeles commonly known as Hepatitis A virus (HAV) test is a blood test that looks for proteins or antibodies made by the body responding to the virus that causes hepatitis A. These proteins is going to be present in your blood if you have a hepatitis A infection now or have had one in the past. It is important to identify the kind of hepatitis virus causing the infection to prevent it from spreading and to start the proper treatment.
HAV infection is spread through food or water that has been contaminated by the feces (stool) of an infected person. IgM anti-HAV antibodies indicate a recent infection with hepatitis A virus. IgM anti-HAV antibodies generally can be detected in the blood as early as 2 weeks after the initial HAV infection. These antibodies vanish from the blood three to twelve months after the infection. IgG anti-HAV antibodies mean that you have had a hepatitis A viral infection. About eight to twelve weeks following the initial infection with hepatitis A virus, IgG anti-HAV antibodies show up and stay in the blood for lifelong protection (immunity) against HAV. Hepatitis A vaccine exists to prevent an HAV infection. If you have had this vaccine and you have anti-HAV antibodies, this means the vaccination was effective.
Hepatitis virus testing is implemented to: Find out the kind of hepatitis virus causing a hepatitis infection. Screen individuals (like doctors, dentists, as well as nurses) who have got a bigger chance of getting or spreading hepatitis A. Screen potential blood donors and donor organs to prevent the spread of hepatitis A. Determine whether an individual has antibodies after getting a hepatitis A vaccine. If you had this vaccine and you now possess antibodies to the hepatitis A virus (anti-HAV antibodies) in your bloodstream, this indicates the vaccination was effective (you’re immune to hepatitis A). Determine if a hepatitis A infection is the reason behind abnormal liver function tests.
Hepatitis virus testing is carried out by the doctor taking a sample of your blood which is going to: Wrap an elastic band around your upper arm to prevent the flow of blood. This will make the veins below the band larger so it’s easier to place a needle into the vein. Then he’ll clean the needle site with alcohol. Place the needle into the vein. More than a single needle stick may be required. Attach a tube to the needle to fill it with blood. Remove the band from your arm when sufficient blood is collected. Place a gauze pad or cotton ball over the needle site as the needle is removed. Place pressure on the site and then put on a bandage.
In doing the hepatitis A testing Los Angeles there is very little chance of a problem from having blood sample extracted from a vein. You might get a small bruise at the site. In rare cases, the vein can become swollen after the blood sample is obtained. Ongoing bleeding could be a problem for individuals with bleeding disorders. Aspirin, warfarin (such as Coumadin), and other blood-thinning medicines can make bleeding more likely. If you’ve got bleeding or clotting problems, or if you take blood-thinning medicine, inform your doctor before your blood sample is taken.