I'm not sure how to use it really.
Using the same stick, the process is repeated via the other nostril.
They involve using nasal swab from lower part of nose.
After the swab, the staff will insert the stick into an extraction tube with a buffer solution and drip the specimen onto a test cassette.
Me, I like the concept but I suck at discipline, and you really need to work at it regularly.
A licensed healthcare worker will extract blood from a patient and the rapid test kits interpret the results in as little as 15 minutes.