Round after round of nucleic acid testing makes everyone very speechless and helpless, many partners will also appear uncomfortable after the throat is stabbed uncomfortable phenomenon, that is not nucleic acid testing sampling swab toxic to the human body has side effects? Here we will take a look at
Sampling swab is not a cotton swab, it is made of polyester or nylon fiber, more similar to the toothbrush in daily life. When doing a sampling swab, it is millions of tiny fibers vertically and evenly covering the top of the swab handle.
Sampling is like a toothbrush, but it is brushing the posterior pharyngeal wall of the mouth to take cells, and then the sampling swab into the sampling tube, because the use of nylon and polyester, it is easy to get off into the preservation solution, followed by the laboratory to carry out the relevant tests.
"Sampling swabs do not contain reagents and are not toxic"
Sampling the use of "swabs" should be called "sampling swabs", they are not the cotton swabs used in everyday life.
The biggest difference between the two is
The raw material of the swabs in daily life is skimmed cotton;
The sampling swab looks similar to a regular cotton swab, but the tip is actually a flocked swab.
The flocked swab front end uses short nylon fibers fixed in a vertical manner, making the entire collection area of the collection swab without absorption holes, the collected sample will not be scattered and retained in the fibers, which is conducive to faster and more efficient elution, more suitable for sampling and testing.
According to the relevant data, flocked swabs can elute more than 85% of the sample collection volume.
After sampling, the sampling swab needs to be rotated and mixed in the preservation solution for at least 30 seconds as well as squeezing the swab head for at least 5 seconds.
With ordinary swabs, not only can the sample not be eluted, but the skimmed cotton will absorb the preservation fluid, and the squeezed out is also a mixture of sample and preservation fluid.
Sampling swabs are medical devices
The basic requirement of qualified products is non-toxic and non-hazardous
Sampling swabs belong to medical devices, the production environment and requirements are very strict, quality control also has relevant standards, the most basic is non-toxic and harmless, sampling swabs production process will not produce harmful substances.
Sampling process will have some stimulation, different people feel different. For example, some people are more sensitive pharynx, sampling after feeling uncomfortable, there is a sense of foreign matter, itchy feeling or vomiting, some people will be greater tolerance. Individual differences are relatively large.
There is another situation, sampling is usually open mouth, some people soft palate on the tongue root together, sampling people want to ensure the quality of sampling, will probe in, to find the back wall of the pharynx, tonsils, a probe when there is irritation, some people stimulus reaction is very strong, vomiting, cough, but once the sampling is completed it is easy to relieve. So sampling is not harmful to the individual.
