Hiện nay có nhiều loại xét nghiệm Covid-19 khiến chúng ta dễ bị nhầm lẫn và dẫn đến việc tốn kém không cần thiết cho việc xét nghiệm khi chúng ta nghi bị nhiễm bệnh.
– Xét nghiệm PCR: đây là loại xét nghiệm bắt buộc khi đi du lịch ra khỏi nước. THƯỜNG PHẢI TRẢ MỘT KHOẢN PHÍ NHẤT ĐỊNH.
– Nếu không có nhu cầu du lịch thì việc xét nghiệm nhanh (Antigens Test, Rapid Test) hoàn toàn đáp ứng cho nhu cầu kiểm tra tình trạng nhiễm bệnh Covid của chúng ta. THƯỜNG LOẠI XÉT NGHIỆM NÀY LÀ FREE.
Chúng ta có thể xem một trích dẫn bài viết về các loại xét nghiệm Covid dưới đây:
A. Viral tests are swab or saliva tests.
- They can show if you have a current infection.
- There are two types of viral tests: antigen tests and nucleic acid amplification tests (NAATs).
- Viral tests can be rapid tests (results in 15-30 min) or laboratory-based tests (that can take 1-3 days for results). Most antigen tests and some NAAT tests are rapid tests.
- There are now several rapid tests that are available over-the-counter (OTC) for testing yourself at home or anywhere. Most of these are antigen tests. See self-testing to learn more.
- PCR tests are a type of NAAT test that is usually performed in a laboratory. PCR tests are considered the most accurate test for COVID-19. They are often used to confirm the results of rapid tests.
- NAAT and antigen tests can be used whether you have symptoms or not. There are trade-offs to both kinds of tests. Rapid tests are recommended when you need or want to know your results right away but false results are a bit more common. More accurate NAATs (usually PCR tests) are recommended to confirm some rapid test results and when a person can wait for the test result; these tests are less likely to yield a false result. Antigen tests are recommended over NAAT tests when testing to get out of isolation early or if you had COVID-19 in the past 3 months.
- See Understanding Your Viral Test Result and What to do Next for more information.
B. Antibody tests (also known as serology tests) are blood tests.
- They might tell you if you had an infection in the past, but they cannot tell you when.
- They should not be used to test for a current infection or to tell if you are protected from getting COVID-19 in the future.
[Nguồn tham khảo: http://publichealth.lacounty.gov/acd/ncorona2019/covidtests ]