APPLICATION
Equipment and materials not included in the kit
- Test tubes with transport medium.
- Gloves, cotton wool.
- Dispenser (semi-automatic variable volume pipette) for sample introduction with disposable polypropylene tips.
- Timer.
- Fridge freezer.
- Desinfecting solutions approved for use by Sanitary Regulations SP 1.32322-08, except for chlorine containing ones.
Preparation for the Analysis
- Bring up all materials and samples to room temperature (from +18ºC to +30ºC).
- Add 8 drops (~0.5 ml) from the vial with extraction buffer to the test tube included in the kit. Place the solution tube vertically in the rack.
- Using a sterile swab probe, carefully insert the swab portion into the patient's nostril (Figure 1).
- Swipe the swab over the back of the nasopharynx and rotate the probe several times.
- Remove the swab from the nasal cavity.
- Insert the swab probe into the extraction tube with the extraction solution.
- Roll the swab probe in a test tube in a circle at least 6 times, pressing it to the bottom and to the walls of the extraction tube (Figure 2).
- Leave the swab in the extraction tube for 1 minute.
- Squeeze the outside of the tube several times to squeeze out the swab. Remove the swab probe from the test tube.
Note: When using a transport medium, dilution of the samples with the extraction buffer is not required.
Analysis Procedure
- 1. Remove the test cassette from the sealed foil package (or remove the test strip from the tube), mark and put on a horizontal surface. Immediately close the vial containing the remaining test strips tightly. Do not remove the desiccant from the tube!
When performing the analysis with the test cassette:
- Put the attachment on the test tube with the extraction solution containing the biological material (see "Preparation for the Analysis"). Make sure the attachment fits tightly against the tube!
- Keeping the test tube in an upright position, add 2 drops (~ 80 µl) of the solution into the round hole of the test cassette (marked with “S”).
- When using biological material from the test tube with the transport medium, pipette 2 drops (~ 80 µl) of the transport medium into the round hole of the test cassette (marked with the "S").
Note: When using a transport medium, preliminary dilution of the samples with the extraction buffer is not required!
When performing the analysis with the test strip:
- When using biological material from a test tube with a transport medium, pipette 8 drops (~ 0.5 ml) of the transport medium into the test tube with a nozzle.
- Holding the test strip in an upright position, immerse it for 5-10 seconds (up to the line marked "???") into a test tube with an extraction solution containing biological material (see "Preparation for the Analysis") or into a test tube with a nozzle containing a transport medium with biological material.
- Remove the test strip from the tube and place it on a flat, horizontal surface.
- Start the timer.
Read the analysis results in 15-20 minutes.
Note: Results may not be accurate after 20 minutes.
Note: Do not reuse the test cassette (or test strip). Dispose of the used test cassette (or test strip) according to "Disposal".
Result Interpretation
Figure 3. Band coloration pattern
Negative:
If the test portion (T) does not have a colored band while the control portion (C) shows a colored band, the result is negative and valid.
Positive:
If two colored bands are observed, the test result is positive and valid.
Invalid:
The test result is invalid if a colored band does not appear on the control portion (C). The sample should be re-analyzed using a new analysis item.
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