Types of Tests to Diagnose COVID-19


Even in 2022, there are still relevant cases of COVID-19 across the world. When symptoms strike, being tested is essential because it’s the only way to stay informed and avoid spreading COVID-19. The polymerase chain reaction (PCR) test and the antigen test, sometimes known as the rapid test, are the two most commonly performed COVID-19 tests. Both tests need a patient sample, typically a nose swab. There are many rapid urgent care providers that offer rapid covid testing san antonio facilities with the advantage of same-day results.

Types of COVID-19 tests

Rapid antigen, antibody, and molecular testing are referred to as point-of-care tests because they provide results immediately, typically within 15 minutes, after a sample is collected. Some qualified nurses from urgent care clinics offer rapid covid testing at home.

1.    Rapid COVID test

A form of diagnostic test is a rapid COVID test. Viral antigens, molecules that direct the human body to generate an immune response to an infection, are typically tested by fast diagnosis procedures. A COVID quick antigen test can be performed in various settings by trained professionals.

2.    The polymerase chain reaction (PCR) test

The PCR test is another diagnostic procedure for molecules carrying viral genetic material (RNA). It is carried out in a certified laboratory and is labor-intensive. The molecular test is the typical diagnostic procedure for COVID, but it could take a few days or more to receive the results.

3.    Loop-mediated isothermal amplification (LAMP)

To detect coronavirus RNA, there are additional non-PCR types of molecular tests available, generally with quicker processing times. LAMP is one of the methods used to figure out whether a coronavirus infection is active. It is a rapid molecular test commonly used in clinical settings, such as nursing homes or hospitals.

Reliability of Results

Rapid antigen testing is a diagnostic tool, but they are not intended to confirm an infection that is actively spreading or to stop transmission among those who are asymptomatic. They are designed for those who have COVID-19 symptoms, for those who have been in touch with a confirmed COVID case, and for tracking those who are a part of an outbreak.

A person most likely has COVID-19 if his/her quick antigen test shows a positive result. A molecular test can only confirm this diagnosis. A rapid covid testing san antonio, shows more accurate results in patients in the early stages of COVID-19 and have the highest viral loads in their nose and throat passages.

A quick COVID antigen test may not be able to identify symptoms if one takes it five to seven days after the onset of symptoms, leading to a false-negative result. Likewise, if one takes the test too early, maybe right after exposure to the virus, the consequences will be negative. I


Rapid antigen tests are now more widely used to screen massive numbers of individuals to detect those who may be affected and monitor the infection’s spread throughout the community. A test kit can be purchased to perform the diagnostic at home, or one can contact professionals from urgent care facilities to serve the rapid covid testing san antonio more carefully and competently.