Hepatitis A Total (IgM - IgG) Blood Test
Description:
Hepatitis A Total (IgM - IgG) Blood Test
This test can be used to look for both recent and past exposure to Hepatitis A. It can also be used to verify immunity to Hep A. Hepatitis A is a liver infection which is typically spread through exposure to contaminated fecal matter. Some of the common ways Hep A is spread include
- Through contaminated drinking water
- Eating food prepared by someone who has not properly washed their hands
- Eating produce that has not been properly washed
- Eating seafood raised in contaminated water
- Through some forms of sexual contact
- Exposure to infected blood
The Hepatitis A Total test looks for 2 types of antibodies. IgM antibodies develop soon after exposure and fade away after a couple of months. IgG antibodies develop later and remain present in the body. The presence of IgM antibodies indicates a recent exposure to the virus and the possibility of an acute infection. Typically, IgG antibodies provide immunity to Hep A for people who have had a past infection or have received a vaccination.
Hepatitis A is typically associated with flu-like symptoms. Common symptoms include nausea, vomiting, diarrhea, abdominal pain, loss of appetite, fever, fatigue, and joint pain. In some cases, especially in younger children, Hep A may show no symptoms.
This test is not able to differentiate between the types of Hep A antibodies. A positive result may indicate a recent infection or immunity from vaccination or clinical recovery. People who are concerned about a recent exposure to Hep A or are currently experiencing symptoms may wish to order the Hepatitis A IgM Abs test.
Turnaround time for the Hepatitis A Total test is typically 1 business day.
Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.
Incubation Period:
Hepatitis A IgM antibodies are usually detectable 3 to 4 weeks after an initial exposure and return to normal after about 8 weeks. The Hepatitis A IgG antibodies may begin to develop 2 weeks after the IgM antibodies increase to a high level. IgG antibodies may persist indefinitely.
Requirements:
It is recommended that someone taking Biotin (also known as vitamin B7 or B8, vitamin H, or coenzyme R) stop consumption at least 72 hours prior to the collection of a sample.
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