HLA-B*5701 Genotyping - Abacavir Hypersensitivity

The test is performed on a blood sample. The sample is then analyzed in a lab to look for the presence of the HLA-B*5701 allele.

Abacavir is an antiretroviral medication used in the treatment of HIV.

A hypersensitivity reaction is an overreaction of the immune system to a substance. In this case, the substance is the drug Abacavir.

The test itself poses minimal risk, similar to having a blood draw. However, not having the test done before starting Abacavir could lead to a severe hypersensitivity reaction if the individual has the HLA-B*5701 allele.

The test results are usually available within 3-5 days.

A positive result means that you carry the HLA-B*5701 allele and have a high risk of developing a hypersensitivity reaction to Abacavir. Your healthcare provider will likely choose an alternative medication for your treatment.

No, you should not take Abacavir if you test positive for the HLA-B*5701 allele due to the risk of a severe hypersensitivity reaction.

If you test positive for the HLA-B*5701 allele and are already taking Abacavir, your healthcare provider will likely stop the medication immediately and choose an alternative treatment.

No, the test requires a blood sample to be drawn by a healthcare professional and then sent to a laboratory for analysis.

Yes, this test can be performed on children who may be prescribed Abacavir for the treatment of HIV.

Coverage for this test will depend on your specific insurance plan. It is best to contact your insurance provider for information about coverage.

As with any test, there is a small chance of a false positive or false negative result. However, the test is highly accurate and such cases are rare.

The HLA-B*5701 test is the main test recommended before starting Abacavir. However, your healthcare provider may order additional tests based on your specific health situation.