Hepatitis A Total (IgM - IgG) Blood Test

Acute and Remote Exposure, Immunity Detection


Test Code: 006726
Specimen Type: Blood

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 antibodiesIgM 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.

Categories:


Hepatitis A Total (IgM - IgG) Blood Test

Acute and Remote Exposure, Immunity Detection


Test Code: 508
Specimen Type: Blood

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 antibodiesIgM 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:

Dietary supplements containing biotin (also known as vitamin B7 or B8, vitamin H, or coenzyme R) may interfere in assays and may skew results to be either falsely high or falsely low. For people receiving the recommended daily doses of biotin, draw samples at least 8 hours following the last biotin supplementation. For people on mega-doses of biotin supplements, draw samples at least 72 hours following the last biotin supplementation.

Categories: