Collection and preservation Of Oral Swab Samples

1. Preparation: medical oral swab and paper material evidence packaging bag. Wear: disposable sterile gloves and sterile non-woven mask. Fill in the material evidence bag information form, mark the sampling date of the sample, and take two or three clean toilet papers and put them on the desktop.

2. Sampling: Give the identified person a cup of clear water (for gargling) and ask him to rinse simply to remove the food residue left in the mouth (if the identified person is an infant, ask his guardian to feed a small amount of boiled water first), then ask the identified person to open his mouth naturally, and gently press and rotate the oral swab on his tongue or buccal mucosa (cheeks on both sides of the mouth) with a medical disposable sampling swab for 3-5 times. In the same way, take 2-3 swab samples and put them on clean paper towels to dry in the shade. (It is estimated to be about 2 hours)

3. After being verified with the appraiser, put the cotton swabs that have just been taken into the paper material evidence packaging bag filled with the information of the corresponding appraiser. Pay attention to the following points when collecting oral swab samples:

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

2. The samples collected by the above method can be stored in a dry environment for 2-3 months;

3: The oral swab should be dried in the shade and then put into a paper envelope to avoid the mildew of the oral swab affecting the detection; Different people’s oral swabs need to be stored separately and identified.

4. It is best not to eat, smoke, chew gum and betel nut before sampling.