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Principle

The HIV 1/2 Human Immunodeficiency Virus Rapid Test Device (Whole Blood/Serum/Plasma) is a qualitative, membrane based immunoassay for the detection of antibodies to HIV 1/2 in whole blood, serum or plasma. The membrane is pre‐coated with recombinant HIV antigens. During testing, the whole blood, serum or plasma specimen reacts with HIV antigen coated particles in the test strip. The mixture then migrates upward on the membrane chromatographically by capillary action and reacts with recombinant HIV antigen on the membrane in the test line region. If the specimen contains antibodies to HIV 1 and/or HIV 2, a colored line will appear in the test line region indicating a positive result. If the specimen does not contain HIV 1 and/or HIV 2 antibodies, a colored line will not appear in the test line region indicating a negative result. To serve as a procedural control, a colored line will always appear in the control line region indicating that proper volume of specimen has been added and membrane wicking has occurred.

Procedure

DIRECTIONS FOR USE：

HIV 1/2 Rapid Test Strip(Whole Blood/Serum/Plasma)
Allow the test strip, specimen, buffer, and/or controls to equilibrate to room temperature (15‐30°C) prior to testing.
1. Remove the test strip from the foil pouch and use it as soon as possible. Best results will be obtained if the assay is performed within one hour.
2. Peel off the tape from the test card, and stick the test strip in the middle of test card with arrows pointing down on the test card.
For Serum, Plasma or Venipuncture Whole Blood specimen: Hold the dropper vertically and transfer 2 drops of serum, plasma or venipuncture whole blood (approximately 80 μL) to the ‘Specimen Pad’ of the test strip, then add 1 drop of buffer (approximately 40 μL) and start the timer.
For Fingerstick Whole Blood specimen:
To use a capillary tube: Fill the capillary tube and transfer approximately 80 μL of fingerstick whole blood specimen to the “Specimen Pad” of the test strip, then add 1 drop of buffer (approximately 40 μL) and start the timer.
To use hanging drop: Allow 2 hanging drops of fingerstick whole blood specimen to fall into the center of the “Specimen Pad” on the test strip, then add 1 drop of buffer (approximately 40 μL) and start the timer.
3. Wait for the colored line(s) to appear. The result should be read at 15 minutes. Do not interpret results after 20 minutes.

Interpretation Of Results

INVALIDRESULT:
Control line (C) falls to appear. Insufficient buffer volume or incorrect procedural techniques are the most likely reasons for control line failure.
Review the procedure and repeat the procedure with a new test device. If the problem persists, discontinue using the test kit immediately and contact your local distributor.
*NOTE: The intensity of the color in the test line region (T) will vary depending on the concentration of HIV antibodies present in the specimen. Therefore, any shade of colored in the test region (T) should be considered positive.