China News Service, March 15th. According to the website of the Jilin Provincial Health and Health Commission, the Jilin Province New Coronavirus Pneumonia Epidemic Prevention and Control Leading Group Office issued the "Jilin Province New Coronavirus Antigen Self-Test Personnel Operation Manual (Trial)" on the 15th. During the quarantine observation period, the quarantine observers will carry out nucleic acid testing in accordance with the requirements of the current relevant prevention and control plans, and conduct antigen self-tests once a day for the first 5 days.
Jilin Province New Coronavirus Antigen Self-Tester Operation Manual
(trial)
In order to implement the requirements of the State Council's joint prevention and control mechanism for the new coronavirus pneumonia epidemic, "New Coronavirus Antigen Detection Application Plan (Trial)" (Joint Prevention and Control Mechanism Zongfa [2022] No. 21), and further achieve early detection and early triage of new crown patients. Management, improve detection and early warning sensitivity, this manual is specially formulated.
1. Basic requirements for antigen self-test
(1) Applicable people.
1. Isolation observation personnel, including home isolation observation, close contact and sub-close contact, entry isolation observation, closed control area and personnel in control area.
Antigen self-test should be carried out under the organization and management of relevant management departments.
2. Community residents who need antigen self-testing.
All regions should take cities and states as the unit, combine the actual situation of the region, and determine the scope of suitable population for antigen testing according to the division of risk areas.
(2) Instructions for self-testing.
Antigen detection is generally used in the acute infection period, that is, the detection of samples within 7 days of the onset of symptoms in the suspected population.
Both positive and negative antigen results of suspected populations should undergo further nucleic acid testing. Positive results can be used for early triage and rapid management of suspected populations, but cannot be used as the basis for the diagnosis of new coronavirus infection.
The selected antigen detection reagents must be approved by the State Drug Administration.
2. Antigen self-test application management
(1) Application management of isolated observers.
1. Persons in home isolation observation, close contact and sub-close contact, entry isolation observation, closed control area and control area shall be organized and managed by relevant management departments (such as communities, villages and towns, isolation points, etc.).
During the quarantine and observation period, nucleic acid testing shall be carried out in accordance with the requirements of the current relevant prevention and control plans, and antigen self-testing shall be carried out once a day for the first 5 days.
2. The main conditions to be met.
The following conditions must be met at the same time for the isolation and observation personnel to perform antigen testing:
(1) Establish an antigen self-test management process, including the collection of antigen test reagents, personnel information verification, testing process supervision, and result reporting, etc.
(2) Isolation observers need to read the instructions carefully, and conduct sampling, sample addition, and result interpretation in a standardized manner in accordance with the prescribed requirements and procedures; the management department with conditions should supervise and manage the testing process to ensure that the test results are authentic and credible .
3. Preparation of detection reagents.
The management departments (such as communities, villages and towns, isolation points, etc.) that organize isolation and observation are responsible for the procurement, distribution, and management of antigen detection reagents.
(2) Application management of community residents.
1. Community residents who have self-test needs can purchase antigen test reagents for self-test through retail pharmacies, online sales platforms and other channels.
2. Matters needing attention.
In order to ensure the quality of sampling and testing, residents need to read the instructions carefully, and carry out operations such as sampling, adding samples, and interpretation of results in a standardized manner according to the prescribed requirements and procedures.
3. Antigen self-test operation process
(1) Preparation before antigen self-test.
1. Wash your hands.
Wash hands with running water or hand sanitizer.
2. Understand the inspection process.
Carefully read the instruction manual of the antigen self-test reagent and the precautions related to the antigen self-test.
3. Reagent preparation.
Check whether the antigen self-test reagent is within the shelf life, and check whether the contents of the nasal swab, sampling tube, test card, etc. are missing or damaged.
If the reagent expires or the contents of the reagent are missing or damaged, the detection reagent should be replaced in time.
4. Confirm the testing requirements for ambient temperature and humidity.
The detection of colloidal gold test strips generally requires normal temperature conditions of 14°C-30°C to avoid abnormal test results caused by excessively cold, overheated or excessively humid environments.
Unpack the antigen test card and place it in a flat, clean place.
(2) Sample collection.
1. Those over 14 years old can perform nasal swab sampling by themselves.
The self-tester first blows his nose with toilet paper.
Carefully unpack the nasal swab to avoid touching the swab tip with your hands.
Then tilt the head slightly, hold the swab in one hand and stick the tail of the swab into one nostril and enter it slowly along the bottom of the lower nasal passage to go back 1-1.5 cm, then stick it to the nasal cavity and rotate for at least 4 circles (the dwell time is not less than 15 seconds), and then Repeat the same for the other nasal cavity using the same swab.
2. Self-inspection persons aged 2-14 should be sampled by other adults.
When sampling, first blow the nose with toilet paper, and then tilt the head slightly.
Sampling personnel carefully unpack the nasal swab, avoid touching the swab head with hands, gently support the head of the person being collected with one hand, hold the swab with the other hand and stick it into one nostril, and slowly penetrate backward along the bottom of the lower nasal passage. After 1 cm, stick to the nasal cavity and rotate at least 4 times (remaining time not less than 15 seconds), and then use the same swab to repeat the same operation for the other nasal cavity.
(3) Antigen detection.
1. According to the instructions of the reagent, put the nasal swab after collecting the sample into the sampling tube immediately. The swab head should be rotated and mixed in the preservation solution for at least 30 seconds. 5 times to ensure that the sample is sufficiently eluted in the sampling tube.
2. Squeeze the liquid from the swab head through the outer wall of the sampling tube by hand, and then discard the swab.
After capping the sampling tube, drop the liquid vertically into the sample hole of the test card.
3. According to the reagent instructions, wait for a certain period of time to interpret the results.
Positive results: red or purple bands are displayed at both "C" and "T", and the color of the band at "T" can be dark or light, all of which are positive results.
Negative Result: Red or purple band at "C", no band at "T".
Invalid result: No red or purple band is displayed at "C", regardless of whether the band is displayed at "T".
If the result is invalid, you need to take the test strip and test again.
Fourth, the disposal of test results
(1) Disposal of positive results.
1. Isolate observers.
Home isolation observation, close contact and sub-close contact, entry isolation observation, closed area and control area with positive antigen test results (positive result will be reported to XX unit as soon as possible, name XX, contact phone number XX), must be controlled by personnel Immediately contact the emergency center to transfer the residents to a medical institution with a fever clinic in accordance with the guidelines for the transfer of personnel related to the new coronary pneumonia epidemic, and conduct nucleic acid testing to confirm.
2. Community residents.
If a community resident has a positive self-test antigen result, regardless of whether they have respiratory symptoms, fever or other symptoms, the resident should immediately report to the community (village or town) where they live (positive results are reported to XX unit, name XX, contact phone number XX as soon as possible), and the community ( Villages and towns) contact the emergency center to transfer residents to medical institutions with fever clinics for confirmation by nucleic acid testing in accordance with the guidelines for the transfer of personnel related to the new coronary pneumonia epidemic.
(2) Disposal of community residents with negative results.
If the antigen test result is negative, asymptomatic residents can be closely observed, and then undergo antigen or nucleic acid testing when necessary; symptomatic residents are advised to go to a medical institution with a fever clinic for nucleic acid testing as soon as possible; if it is inconvenient to see a doctor, they should Self-isolate at home, avoid going out, and take an antigen self-test every day for 5 consecutive days.
5. Medical waste disposal
(1) Isolate observers to test waste management.
Regardless of whether the test result is negative or positive, all used sampling swabs, sampling tubes, test cards, etc., are put into sealed bags and disposed of by management personnel in accordance with medical waste or according to procedures.
(2) Community residents test waste management.
1. If the test result is positive, all nasal swabs, sampling tubes, test cards, etc. used by the positive person are put into a sealed bag and handed over to the medical institution for disposal as medical waste when the person is transported.
2. If the test results of community residents are negative, all nasal swabs, sampling tubes, test cards, etc. after use will be placed in a sealed bag and disposed of as general garbage.
6. Confirmation of nucleic acid detection
Nucleic acid testing is the basis for the diagnosis of new coronavirus infection.
In the process of nucleic acid test confirmation, if the nucleic acid test is positive, regardless of whether the antigen test result is positive or negative, corresponding measures shall be taken according to the new coronavirus infection or the new coronary pneumonia confirmed patient.
If the nucleic acid test is negative but the antigen test is positive, it is deemed that the new coronavirus infected person takes measures such as centralized isolation, close observation, and continuous nucleic acid testing.