1, preparation: medical oral swab, paper evidence encapsulation bag. Wearing: disposable sterile gloves, sterile non-woven mask. Fill out the evidence bag information sheet, mark the sample sampling date, take two to three clean toilet paper on the table.

2, sampling: give the appraisee a glass of water, (for gargling) ask him/her to simply gargle to remove the residual food residue in the mouth (if the appraisee is an infant, ask his/her guardian to feed a small amount of boiled water first), then ask the appraisee to open his/her mouth naturally, use the medical disposable sampling swab on his/her tongue or oral buccal mucosa (both sides of the cheeks in the mouth) and lightly press and rotate the oral swab 3-5 times. Using the same method, take 2-3 swabs of the sample and place them on a clean paper towel to dry naturally in the shade. (expect about 2 hours)

3, after verifying with the appraisee that the sample is correct, place the swab just taken into the paper evidence package bag filled with the corresponding appraisee information.

The following points should be noted for the collection of oral swab samples.

1: Avoid touching the swab head with your hands and rinse your mouth with water before collection.

2:Samples collected by the above method can be stored in a dry environment for 2-3 months;

3:Oral swabs need to should be shade dried and put into paper envelopes to avoid oral swabs from mold and mildew to affect the detection; Oral swabs of different people need to be stored separately and well identified.

4: sampling before the best not to eat, smoking and chewing gum betel nut, etc..

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