In the face of covid-19
Nucleic acid testing becomes a high-frequency word
A nucleic acid test is not only reassuring
It can more effectively block the spread of the epidemic in a timely and effective manner
A variety of common sense questions for nucleic acid testing
Xiaobian sorted out the following for everyone
Nucleic acid testing
Knowledge Q&A
Q1: Will drinking alcohol yesterday affect the test results?
answer
No.
Try to avoid eating 2 hours before the nucleic acid test to avoid vomiting. Do not smoke, drink alcohol, or chew gum 30 minutes before sampling to avoid false negative results.
At present, most of the nucleic acid testing uses an oropharyngeal swab, and the inspector uses a swab similar to a cotton swab to wipe the posterior wall of the pharynx and bilateral tonsils, and the sample is collected and sent to the laboratory, which is not a long time. Therefore, in line with the attitude of being responsible for the overall situation of epidemic prevention and control and being responsible for my own health, please cooperate with the relevant provisions of nucleic acid testing, standardize the collection of throat swab samples, and avoid various behaviors that may affect the test results.
Q2: With laryngitis, phlegm in the throat will not be
Does it affect the test results?
Its etiology is mainly caused by recurrent episodes of acute pharyngitis, irritation of inflammatory secretions in the nasal sinuses and nasopharynx, direct spread of chronic inflammation of the tonsils or excessive tobacco and alcohol, dust, harmful gases, air pollution and other stimuli and excessive eating of spicy food, etc. The new crown nucleic acid detection is a specific test, which is the performance of the new crown virus infection, so it will not affect the test results.
Q3: A little cold when testing,
Will it affect the test results?
Coronavirus-specific RNA sequences are markers that distinguish the virus from other pathogens. If the symptoms of upper respiratory tract infection are not caused by the new crown virus, the kit will not accumulate a sufficient amount of immunofluorescence, and the specific nucleic acid sequence of the new crown virus will not be detected in the patient sample, so there is no need to worry about being "misjudged".
If you have upper respiratory tract symptoms to check for nucleic acid, wear a mask correctly according to the regulations, maintain a safe distance from others, avoid conversation, and cover coughs with tissues or elbows to reduce the risk of droplet transmission.
Q4: Do children also have to do nucleic acid testing?
How?
To be done.
Children are also at risk of COVID-19 infection, so nucleic acid testing should also be performed.
If your baby is too young to take samples with healthcare workers on their own. Parents can squeeze the cheeks on both sides of the baby's cheeks with a little force and take a throat swab after the baby opens his mouth. Do not force your mouth to avoid harm to your baby's mouth. At the same time, it aggravates the child's fear psychology and affects the collection process.
Q5: Full screening if it is a mixed sample test,
Will it affect the test results?
At present, there are two modes of "mixed inspection". One is to sample several people such as 5 or 10 people separately after sampling, put into the same sampling tube, this mode is also called "mixed sampling" or "mixed sampling", now most of the time to use this mode; the other is in the laboratory test, the samples of 5 or 10 people are taken in the same volume and mixed together, also known as "sample mixing".
From a scientific point of view, the first "mixed collection" mode will not affect the sensitivity of nucleic acid detection, and the latter mode of mixing samples for detection has a certain impact on the sensitivity of detection, but the degree of impact is small. Although the sample was mixed, the virus still existed and was evenly distributed in the sample preservation solution, but the virus concentration was diluted. Under normal circumstances, 500 viruses in a milliliter sample can be detected. In the samples of covid-19 carriers, there are usually millions of viruses per milliliter. Therefore, even if it is diluted, the test results are very reliable.
Q6: What should I pay attention to for nucleic acid testing?
Before testing:
Scientifically wear masks, bring good ID cards, and follow the arrangements for orderly queuing;
Maintain a distance of more than 1 meter, do not get together, do not gather, do not talk to people.
At the time of detection:
Remove the mask when the doctor asks to remove it;
Cooperate with the sampling according to the doctor's requirements, and wear a mask immediately after the sampling is completed;
Try not to touch items such as test benches and protective clothing for collectors.
After detection:
Leave the site as soon as possible after sampling, and do not spit or throw garbage at the collection point or around;
Pay attention to hand hygiene and wipe your hands with hand sanitizer.
Finally, I would like to remind everyone:
Everyone is the first person responsible for their own health
Epidemic protection is everyone's responsibility
In order to win the war once and for all
This protracted battle against COVID-19
We have to work together