Nasopharyngeal Swab Pcr Test
There are two broad categories of COVID-19 tests: viral diagnostic tests (which detect an active COVID-19 infection) and antibody tests (which detect past COVID-19 infections).
The PCR swab test is a qualitative oropharyngeal or nasopharyngeal collection used to detect the novel coronavirus, the virus that causes COVID-19. This test helps determine if you have been exposed to the virus. The COVID-19 PCR test is a molecular test that detects the genetic material of the virus.
The current more accurate test for COVID-19 is to use RT-PCR to assess the presence of SAR-CoV-2 RNA in collected samples. If anything, the subject was almost certainly infected with the virus.
On this page you will learn about:
What are the diagnostic tests for the COVID-19 virus?
How does Nasopharyngeal Swab detect coronavirus?
What types of nasal swab sampling are available?
Do you feel any discomfort?
Is the nasal swab COVID test the best test?
Mouth swab vs Nasal swab
What are the diagnostic tests for the COVID-19 virus?
With the development of testing for COVID-19, there are now four main forms of diagnostic testing for the virus:
Nasal Swab Test: A test involving a shallow nasal flocked swab.
Cell medical flcoekd swab
Nasopharyngeal test: A test that involves a deeper nasal swab using PCR technology.
Saliva Test: A test involving a saliva sample and PCR technology.
Oral swab test: An innovation in COVID-19 testing that allows anyone to test quickly, non-invasively and easily. Use PCR technology.
The COVID nasal swab test, also known as the nasal swab test, is a medical test used to detect viruses in the nose that can cause respiratory infections.
How does Nasopharyngeal Swab detect coronavirus?
Nasopharyngeal testing collects a sample from the back wall of the nasopharynx.
(1) Measure the distance from the nostril to the base of the ear with a swab and mark it with your finger.
(2) Let the patient’s head relax naturally, put the swab against the nostril wall and slowly rotate it into the patient’s first nostril to the nose and palate, and then slowly take it out while wiping. With the same swab, leave the swab in the nose for 15-30 seconds, then gently swirl 3 times. Wipe the other nostril in the same way;
(3) Put the flocked swab into the virus delivery medium, break the swab rod, and place it completely in the tube.
(4) Tighten the cap of the tube, make a mark, put it in a plastic bag and seal it
(5) If it is necessary to collect from both nostrils, a swab should be used separately.
(6) Store at 4°C (short-term storage).
What types of nasal swab sampling are available?
There are three types of sampling swabs used in the nasal cavity, namely nasopharyngeal swabs, nasal cavity swabs, and middle turbinate swabs.
nose structure
Nasopharyngeal testing collects a sample from the back wall of the nasopharynx.
Sampling from the middle turbinate location is not as uncomfortable as the nasopharynx.
Anterior nasal swab/nasal swab:
Taking a sample in the anterior position of the nose does not cause discomfort and can be used by people with narrow nasal passages.
The sampling difficulty is low, and the patient can easily complete the anterior nose sampling by himself.
Although nasopharyngeal swabs, nasal swabs and turbinate swabs have different sampling methods, they can all be used to collect samples and then use PCR results to determine whether the owner of the sample has been infected with the new coronary pneumonia virus.
Do you feel any discomfort? Does it hurt!
Nasopharyngeal Swab Sample
Nasal swabs and throat swabs are the two most widely used sampling methods. Just use a flocked swab to gently wipe the throat mucosa or nasal mucosa, and it can be completed in 1 to 2 seconds, which is generally not uncomfortable. However, for some more sensitive people, irritating retching, nausea or choking may occur. At this time, it is best to use a tissue to cover the mouth and nose and try to hold it back to avoid vomit or sputum. create pollution.
How does nucleic acid testing relieve the discomfort of sampling?
Both nasopharyngeal swab sampling and oropharyngeal swab sampling will make the sampled person feel slightly uncomfortable, which can be relieved after a short rest. Therefore, during the sampling process, the sampled person should cooperate with the sampling personnel as much as possible, relax as much as possible, and do not move the head excessively to avoid scratching the mucous membrane with the sampling swab.
Is the nasal swab COVID test the best test?
What are the current testing methods for COVID-19?
There are two types of virus detection:
- Nucleic acid amplification test (NAAT) (PCR test) and antigen test.
- Antibody tests (also called serology tests) can show whether you have been infected in the past.
Mouth Swab vs Nasal Swab
HOW TO USE
Nasal swabs generally enter from the nasal cavity and take the secretions at the back of the nasopharynx, while pharyngeal swabs enter from the mouth to the throat and take local secretions for inspection, that is, the two enter in different ways.
Learn more about Mouth Swab and Nasal Swab. Click here