About COVID-19 Swab Test
The new crown virus has mutated continuously.
From Delta to Omi Keron, the COVID-19 virus has continued to mutate, and the global epidemic is prevalent at a high level.
Canada announced that all entry personnel from all countries except the United States are required to be tested for the new coronavirus.
At this time, whether you are leaving the country or entering the country.
I even worry or doubt whether I have contracted the coronary disease.
Perhaps understanding the new coronavirus test has become a compulsory course for most people.
What is the new crown swab test, how to collect a nasopharyngeal swab? Is nasal swab sampling painful? If your test result is positive, what do we need to do? Why do most virus tests choose to flock swabs? Is nasopharyngeal swab accurate? Should you be tested for nasopharyngeal swab samples?
We talked with Dr. Li of Cell medical to learn more.
What is the COVID-19 test and what are the test methods?
Nucleic acid detection (RT-PCR Test) method, antibody detection, and antigen detection.
A swab test simple, effective, and fast way to detect COVID-19.
Including nasopharyngeal swab testing and oropharyngeal swab testing.
Medical staff will use flocked swabs to take samples from the nose and throat and put them into the virus sampling tube.
There are two types of swab sample testing: molecular test (PCR) and antigen test.
How to perform a COVID-19 nasal swab test?
The COVID-19 nasal swab test involves inserting a 6-inch flock (a long stick with a very soft brush) into the cavity between your nose and mouth (nasopharynx).
The medical staff inserts the flocking swab into each nostril for about 15 seconds and rotates it several times to collect enough samples for testing.
The samples are then sent to the laboratory for testing, and our test results are usually known within or within the next day
Since the nasopharynx is in a sensitive position of the body, it will produce a lot of very strange sensations.
On the one hand, the swab is inserted deeply into your nose and it irritates the lacrimal glands.
At this point, you don’t know if you are moved to tears or you are crying in pain.
The nasal swab test is not very painful, but it is very uncomfortable. Some people may have nausea during the nasopharyngeal swab test. Nasal swab painful.
Because the swab will also touch the back of your throat, this reaction is normal.
Whether it is tearing or nausea, nasal swab testing is a common phenomenon.
Don’t worry, everything is normal.
Are there other types of COVID-19 swab test methods available?
Yes, an oropharyngeal swab is one of the options.
Of course, if you want to experience another feeling, an anal swab test is also a good choice.
But they are not as sensitive as the COVID-19 nasal swab test.
Israel’s development of the new coronavirus “saliva detection method” saliva detection still needs scientists to confirm on a larger scale. There is no conclusion yet, but it is promising.
In addition to nucleic acid testing for the detection of viral genetic material, there is also antigen testing.
Currently, nasal swab testing for COVID-19, including nucleic acid testing, is still the best choice.
How about the covid test kit at home? Are their results reliable?
The home covid test kit sounds very attractive.
Home covid test usually refers to individuals collecting samples of themselves or their family members through sampling swabs.
We put the collected samples in test tubes with a virus transport medium, and then transport them to the testing facility.
Although you can use the Home covid test kit to test COVID-19 safely and comfortably in your own home.
However, Dr. Li suggested that it should be carried out at a professional testing institution.
Because the quality of the samples we collect and the integrity of the samples during transportation will affect the sampling results.
How accurate is the nasal swab test for COVID-19?
How to obtain a precise nasopharyngeal swab specimen?
Polymerase chain reaction (PCR) uses a piece of DNA as a template.
Then, with the participation of DNA polymerase and nucleotide substrate, the DNA is amplified to a sufficient amount for structural and functional analysis.
Scientists use PCR technology to amplify a small amount of RNA in the sample into deoxyribonucleic acid (DNA) and replicate it until COVID-19 (if present) is detected.
The following may affect the accuracy of PCR nasal swab sampling.
1. Smoking, drinking or chewing gum 30 minutes before use may also interfere with the test results.
2. Touching the swab with the hand or other objects and using the tip of the cotton swab will affect the accuracy of the detection.
Of course, the professionalism of the most important sampling personnel, we have to choose a professional testing agency for testing. And professional VTM Kits.
What should I do if the new coronary pneumonia nasal swab test is positive?
Very bad news!
If the COVID-19 nucleic acid test is positive, a single room isolation treatment should be carried out immediately.
Consultation by in-hospital experts or attending physicians will conduct multiple tests.
Under the premise of ensuring safety, the patient is safely transferred to a designated hospital for diagnosis and treatment.
Don’t worry. You need to actively cooperate with treatment
Otherwise, life is likely to be in danger, and large-scale infections will also occur.
In addition, proper physical exercise should be carried out in life to enhance the individual’s immunity. Colds and fatigue should be avoided.
Don’t do strenuous exercise, so as not to aggravate the disease.
A friend around me was infected with COVID-19. But my nasopharyngeal swab was negative. Is there any way to confirm that I have had it or am I immune to it now?
Certainly.
Antibody test, also called serological test, can detect the antiviral protein IgM and IgG antibodies produced by your immune system in the blood.
What are the types of samples for serum antibody testing?
It is generally blood, including serum, plasma, and whole blood.
PCR swab test, antibody test, and antigen test difference (Please click here)
