How to take a throat swab for RNA sampling?

How to take a throat swab?
Throat swab sampling method:
1. Ask the patient to sit down, tilt his head back, and open his mouth wide. The sampler uses a tongue depressor to fix the tongue, and flock the head with a flocking swab over the root of the tongue to the posterior pharyngeal wall, tonsil recess, side wall, etc.;
3. Wipe 3 to 5 times repeatedly to collect mucosal cells;
4. Take out the swab gently to avoid touching the tongue, pendant, oral mucosa and saliva;
5. Put the swab into the preservation solution and break the swab.
Note: Under normal circumstances, throat swab specimens are not used alone to diagnose upper respiratory tract infections, and should be combined with nasopharyngeal swabs or nasopharyngeal aspirates to improve the detection rate of respiratory tract infections.
Precautions:
1. This product is suitable for collecting virus and DNA samples infected in the oral cavity of people of any age group;
2. Please refrain from eating, smoking, or drinking 30 minutes before sampling to avoid infection of the collected samples.