Is the 48-hour nucleic acid sampling time or the result time? Can the nucleic acid still be used after 48 hours has expired?

1 Is the 48-hour nucleic acid sampling time or the result time

How to define the 48-hour nucleic acid time? The policies of each region are different, but generally the sampling time shall prevail. There are the following situations:

1. For example, on the negative nucleic acid test report, three times are displayed: sampling time, reception time, and report date. Then the nucleic acid test within 48 hours shall be based on the "sampling time".

2. If the nucleic acid test report has a test date but no specific time, the nucleic acid 48-hour calculation time is based on the date of the report.

3. If the nucleic acid test report does not contain the words "test time", then the test time will be recognized first. If there is no test time, the sampling time will also be recognized. 2. Whether the nucleic acid test can still be used after 48 hours has expired

Whether the nucleic acid test can still be used after 48 hours has passed depends on the actual situation.

Generally speaking, if your region or province clearly requires you to carry a 48-hour nucleic acid test certificate, then the 48-hour nucleic acid test cannot be used again after it expires, and you need to take a new nucleic acid test. .

However, if the province is a low-risk area and there is no clear requirement for passengers to carry a 48-hour nucleic acid test when traveling, the nucleic acid test will still be useful after it expires 48 hours. Under normal circumstances, the validity period of the nucleic acid test is Within 7 days. 3. What should I do if the nucleic acid test results have not been produced for 48 hours?

There are mainly the following processing methods:

1. If the nucleic acid test results have not been produced for 48 hours, if you are in a hurry, you can call and ask. The testing agency will check to see if there is something wrong. If it needs to be re-tested, re-sample and redo the nucleic acid test as soon as possible.

2. If there is no nucleic acid result within 48 hours, but it does not affect your personal travel, you don’t need to be too anxious. If there is no notification from personnel, it means that there is no problem with the nucleic acid test, and you can just wait.

3. If an individual is waiting for a negative nucleic acid result to travel, it is best to call the testing agency to specify the reason why there is no result. If it has not been uploaded, you can wait patiently for the result. If it is a sample problem, it needs to be resampled; if it is identity information If the input error results in an inaccurate nucleic acid result, re-check the ID card information and accurately enter the nucleic acid result. 4 The best time for nucleic acid testing for HIV

The details are as follows:

The best time for nucleic acid testing for HIV should be said to be from about six weeks to three months after the high-risk period. Some people believed that HIV testing could take seven days at first, and that high-risk cases can be detected seven days later. The relevant window period is three months. The internationally accepted six-week theory is that the antibody test will be retested after six weeks or three months.

If it is negative, infection can be completely ruled out. There is also HIV RNA detection, which can shorten the window period of HIV to eleven days. However, this technology is relatively expensive and the operation is cumbersome, so it is only used for scientific research and is not widely used in clinical practice. .