About the nucleic acid test pharyngeal swab collection method many friends are curious, in the end will collect which part? How a harvesting? What is the correct posture?

With this series of questions, the following will come with the editor to see the detailed strategy I have compiled for you to introduce, I hope to help you.

Pharyngeal swabs are collected in two ways, oropharyngeal swabs and nasopharyngeal swabs oropharyngeal swabs with a tongue depressor on the subject's tongue, instructed to pronounce a long "ah-" sound. The pharyngeal swab is done in the area of the tonsils on both sides of the subject for "three quick swipes up and down" and in the posterior wall of the pharynx for "three quick swipes left and right", avoiding contact with the tongue, teeth and gums. In case of discomfort, quit and rest for a while and try again.

Note that drinking water before the oropharyngeal swab test will dilute the virus attached to the pharynx, especially drinking hot water will also inhibit the activity of the virus, in order to improve the accuracy of the pharyngeal swab nucleic acid test, the test subject is advised not to drink water 15-30 minutes before the test to ensure a high accuracy of the pharyngeal swab nucleic acid test. For patients with good pharyngeal exposure, a long "ah-" is not recommended to reduce the risk of occupational exposure to the sampler.

Nasopharyngeal swab "one insertion, two stops and three rotations" - measure the distance from the tip of the nose to the front of the ear, insert half of the length, usually about 4 cm for adults; stay for 15-30 seconds to absorb nasopharyngeal secretions (depending on the degree of tolerance of the subject, minimum Dwell time should not be less than 3 seconds; rotate the nasopharyngeal swab joint for 1 week and then slowly remove it.

Note that the sampler stands to the side of the subject to take samples, and requires the subject to pull down the mask to reveal only the nostrils, once the sneeze reflex, the subject can use the elbow or tissue to cover, the sampler is not in front of the subject, the risk of exposure is quite lower.

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