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If you have additional questions regarding this test, please call: 415-353-1667
HIV Antibody and Antigen Combination Test
|In House Availability||Monday - Friday (day shift only)
Note: Confirmatory Western Blot performed every other Wednesday with results available the following Friday.
|Collection Instructions||For tests not ordered directly via APEX, the ordering provider should document patient consent in the medical record|
|Container type||Red top|
|Amount to Collect||1 mL blood|
|Preferred volume||0.5 mL serum|
|UCSF Rejection Criteria||Grossly hemolyzed samples|
|Processing notes||Refrigerate samples.|
|Synonyms||Human Immunodeficiency virus:HIV-1, HIV-2 Antibody & HIV-1 p24 Antigen|
|Stability||Room temperature 3 days|
|Reflex?||HIV-1 Western Blot Confirmatory testing will automatically be performed on all positive samples at an additional charge.|
|Additional information||This test detects antibodies to HIV-1 and HIV-2 along with the p24 antigen. Confirmatory testing via Western blot will be performed on positive tests. The Western blot will often be negative in the setting of early HIV infection (prior to development of a significant antibody response). An HIV-1 viral load (test code HIVRT) can be performed in this setting as a supplemental test.
If a request for HIV Antibody is received without a signature attesting that the patient consented to testing a note will accompany the result reminding the ordering provider to document consent in the patient record.
|Last Updated||8/7/2014 9:50:58 AM|