COVID-19 Swab Test |One Minute to Learn about Nucleic Acid Test
So far, the number of confirmed cases of the global epidemic has exceeded 237 million, followed by the recurrence of the epidemic. We must do a good job in COVID-19 testing and strive to defeat the virus at an early date.
1. Why a nucleic acid test? What does it test for?
Nucleic acid swab detection is the direct evidence to find the existence of virus. The novel coronavirus pneumonia virus nucleic acid test positive, indicating that the presence of virus in the subjects, may be infectious.
If the patient has fever, respiratory symptoms or other clinical features of NCP, the patient can be diagnosed as NCP when combined with positive nucleic acid test; if there are no clinical symptoms, the nucleic acid test result is positive, can be judged as asymptomatic infection.
Novel coronavirus pneumonia is a diagnostic standard for new crown pneumonia.
2. Nasopharyngeal swab test and oropharyngeal swab test, which test method is better?
As we all know, nucleic acid detection generally adopts pharyngeal swab detection. Pharyngeal swab testing includes nasopharyngeal swab testing and oropharyngeal swab testing. The difference between the two lies in the different sampling positions, but there is no essential difference. Most medical institutions use oropharyngeal swab detection, because this detection method has less discomfort and is more convenient for sample collection.
3 .what are the precautions before and after COVID-19 Swab Test?
Before testing;
Get your ID card ready before you go out!
Wear masks correctly without fasting;
Try to avoid eating in the first 2 hours to avoid vomiting and other discomfort;
Try not to drink water, drink, smoke, drink or chew gum in the first 30 minutes;
When sampling, reduce swallowing action, swallow less saliva and don’t clear throat;
We should inform the testing personnel in advance whether they have a history of nasal surgery, bending of nasal septum, blood diseases, throat diseases or taking anticoagulants;
Before testing, remove the mask after the medical personnel give a signal, wear it immediately after sampling, and prepare a spare mask for easy replacement at any time after pollution.
Testing;
Consciously queue up and keep a distance of more than one meter;
When collecting oropharyngeal swabs, tilt your head back, relax as much as possible, breathe deeply, and open your mouth to make an “ah” sound, which is helpful to complete the sampling quickly;
The nose may be itchy during the collection of nasopharyngeal swabs. If you sneeze, cover your mouth and nose with paper towels or elbows immediately;
During the detection, try not to touch the detection platform and other articles, and do not touch the protective clothing of the collection personnel.
After detection
Leave the site immediately after sampling, and do not spit or throw garbage at the collection point and surrounding areas;
The inspectors shall pay attention to hand hygiene before and after the test. They can wipe their hands with hands-free disinfectant, hands-free alcohol, disinfection cotton, etc.
4 How can nucleic acid detection alleviate the discomfort of sampling?
Nasopharynx 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 shall cooperate with the sampling personnel as much as possible, relax as much as possible, and do not over move the head to avoid scratching the mucosa with the sampling swab.