Approaching the end of the year
Everyone needs a nucleic acid test report when traveling
It seems like a simple report
In fact
It's not as simple as you think!
Today
Unveil the whole process of nucleic acid testing for the new crown virus for you
Step 1: Specimen collection
Everyone understands this step
"Poke the throat eye" "Poke the nose eye"
After collection, immerse the swab head in virus preservation solution for preservation
Citywide screenings are usually saved in groups of 10 swabs
Step 2: Collection and transfer
The detection point is strictly biosafety and
Quality requirements for laboratories
After sampling is complete
Samples were sent to the laboratory "heavily armed"
Step 3: Collect and disinfect
Under close protection
Specimens are "escorted" to the testing laboratory
Registration and verification by the recipient
After all-round disinfection, prepare to enter the testing process
Step 4: Full protection
Before entering the sample processing area
Inspectors need to achieve 100% safety protection
Step 5: Information Entry
Workers who have completed full protection enter the sample processing area
Open the sample in a biosafety cabinet
Samples are removed for disinfection and entered into the information system
There are currently two types of information entry
One is bar code entry, which needs to be solved with a "beep"
The other is a manually filled form
It needs to be excerpted into the system one by one
Step 6: Reagent preparation
Based on the number of samples to be examined
Prepare the necessary reagents and auxiliary materials for nucleic acid detection
Precise preparation and dispensing of reaction systems
To improve efficiency
This step and the next two steps
It is usually carried out by different inspectors at the same time
Step 7: Nucleic acid extraction
Nucleic acid of the new coronavirus
It is the RNA that is wrapped inside a protein
Its external protein structure needs to be destroyed
"Catch" viral RNA for testing
In the process
A group of inspectors for a day
Unscrew tens of thousands of lids and absorb tens of thousands of specimens
Step 8: Nucleic acid amplification
The amount of viral nucleic acid contained in the sample is too small to be detected
This requires that nucleic acids become more abundant through continuous replication
This process is called nucleic acid amplification
You cannot stop to add new specimens during the inspection
This batch of amplifications must be waited for
in order to carry out the next batch of amplifications
This is also one of the reasons why specimens cannot be inspected with them
Inside a large laboratory
There are hundreds of nucleic acid amplification devices
At the same time, there are hundreds of inspectors working non-stop
Step 9: Post-inspection processing
To prevent possible contamination
The relevant sample is at the end of the test
Sealed in a designated special medical trash can
It is autoclaved
Step 10: The results are out
The final step in generating a "green code"
Detect people
View results, check script information, and upload data
It is then processed and published by the big data platform
You can check the nucleic acid test results!
Thank you again for the great whiteness of selfless dedication
In a laboratory that brings together countless nucleic acid specimens
In the closest place to the virus
Pay silently
You've worked hard!
Source: Beijing Health Education
Source Health Beijing
Editor: Xie Yongli
Process Editor Tai Shaofeng