Covid Swab testing include nasopharyngeal swabs and oropharyngeal swabs.
A sample taken by a doctor from a patient’s nasal cavity via a nasopharyngeal swab to test for Covid-19.
The oropharynx refers to the detection of secretions mainly from the soft palate, tonsils and other parts of the patient.
We need to pay attention to protection for nucleic acid testing.
The advantage of nasopharyngeal swabs over oropharyngeal swabs is that they are easy to operate.
The operator can stand behind the patient’s side, with only the nostrils exposed, without looking directly into the patient’s mouth.
There is basically no gag reflex, and the exposure risk of the sampler is lower than that of nasopharyngeal swabs.
How to do a covid nasopharyngeal swab without pain?
Since the flocked swab sampling is from the lower nasal passage all the way to the bottom of the nasopharynx.
It is more painful to perform, but in this process, the more nervous and conflicted, the more uncomfortable it will be during sampling.
Therefore, when doing a nasal swab, recommended to relax a little, then tilt your head back, keep still.
And use your nose to inhale and exhale through your mouth.
The collector will make this process quick and generally not too painful.
Does nasopharyngeal swab bleeding affect test results?
It will not affect.
Bleeding when taking a nasal swab is due to the rupture of capillaries in the nasal mucosa when the specimen is taken.
However, under normal circumstances, as long as the secretions from the nasopharynx are collected.
A small amount of bleeding will generally not affect the test results. have an impact.
However, if the secretions from the nasopharynx are not collected during the bleeding.
It is necessary to resample the nasal cavity on the other side after stopping the bleeding by resting.
Therefore, when doing a nasal swab, it is recommended to relax and listen to the collector.
So that sampling can be completed quickly.
Which is more accurate, nasal swab or throat swab?
It has been reported in the literature that when taking samples for SARS-CoV-2 virus nucleic acid detection, the results obtained by simultaneously sampling throat swabs and nasal swabs are generally equivalent.
Therefore, for a nasopharyngeal swab and pharyngeal swab, there is no special regulation on which one to do. It is recommended that those who need to do sampling can choose according to their own conditions. If they can tolerate pharyngeal swab collection, they can do pharyngeal sampling. After the nasal swab was collected, a nasal sampling was performed.
Can nasopharyngeal swab be made by themselves？
Not.
Since the nasal swab test needs to insert the swab deep into the nasal cavity to collect samples, there may be adverse reactions such as pain, gag reflex, tearing, and even nosebleeds during the process, causing physical discomfort and psychological discomfort to the collected person. The sense of resistance will be very strong, so there are highly professional requirements for the sampling personnel, and they cannot be done by themselves.