Is home covid-19 antibody test accurate?
PCR or rapid antigen test is very popular nowadays. They enable us to quickly check whether a person is currently sick with the coronavirus. Nevertheless, antibody tests for COVID-19 also have their potential applications.
Let’s learn more about home antibody tests, their essential benefits in laboratory diagnosis and how accurate they are.
What is a covid-19 antibody test?
The COVID-19 antibody test is also called a “test for past infection.” Because these are serology tests that look for antibodies that are formed to fight infection. They are a positive indication in two cases:
- One person was sick with COVID-19 2-3 weeks ago.
- A person was vaccinated against COVID-19 2-3 weeks ago.
It is generally recommended to make the vaccine a few weeks after infection. This is to confirm whether the coronavirus or the vaccine has worked. In addition, healthcare professionals use antibody test result information in clinical practice to provide treatment, for example.
Benefits of the COVID-19 Antibody Test
Here are some ways that antibody coronavirus tests are convenient:
- It can be done at home. The best part is that you can order a covid antibody test at home from a local laboratory service provider. It’s as easy as just scheduling an appointment and waiting for a nursing specialist to do the work without compromising your safety or test accuracy.
- No specific knowledge is required to perform. If you don’t mind taking a blood sample yourself, you can order an antibody kit online and take it yourself. This is not recommended, but since this option exists, let’s mention it as a benefit.
- There are no contraindications. An antibody test is just taking a blood sample. So, even if it is done in a non-controlled environment, no person can have it.
Now, let’s proceed with evaluating how accurate the antibody test is.
How reliable is the home covid-19 antibody test?
The ideal condition for a COVID-19 antibody test is three weeks after infection/vaccination and a blood sample is taken by a specialist. This way, the body already has enough antibodies in the blood to initiate a reaction, and the possibility of some error or contamination of the blood sample is minimal.
Given these conditions, the accuracy or sensitivity of the COVID-19 antibody test is 94%. Remember this is not lab testing. But even though the PCR test — the “gold standard” — has an accuracy of only 97.2%, the results are quite convincing.