The coronavirus illness 2019 (COVID-19) pandemic has placed the world in a tailspin, which the healthcare industry has responded to in kind with the development and rapid deployment of tests designed to detect infection. Many of these tests assist clinicians and researchers accurately establish extreme acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for COVID-19.

And while these tests have been crucial in figuring out and tracking cases of infection and disease-associated morbidity and mortality, they aren’t without their potential drawbacks.

Types of COVID-19 Tests
A number of new methods have been developed to diagnose COVID-19, many of which have their own different strategies of administration and distinctive benefits:

Rapid, point-of-care diagnostic tests: These tests, which can be classified as either antigen or molecular tests, depend on a mucus sample obtained from the throat or nose and is analyzed at a clinic or doctor’s office. Outcomes from these tests can often be available within minutes of analysis.
At-house collection tests: Tests performed at residence are only available by a health care provider’s prescription. These tests enable the patient to self-accumulate a sample of their house and send it to a lab for analysis.
Saliva tests: These tests depend on samples from sufferers who spit into a tube versus getting their throat or nostril swabbed. For some people, saliva tests may be more comfortable and in addition safer, particularly for frontline healthcare workers.
Diagnostic Tests: Molecular vs Antigen Tests
There are two principal types of COVID-19 tests – diagnostic tests and antibody tests. Diagnostic tests include molecular tests, resembling reverse transcription polymerase chain response (RT-PCR) and antigen tests.

Getting a test for COVID-19 could be difficult for some people, particularly considering the fast evolution on testing steerage on testing options. While every test options its own limitations, molecular tests are maybe the most effective strategies available.

Beneath is an outline of these different tests, including what they’ll do to determine the illness and their limitations.

RT-PCR
The RT-PCR is the most common test that is frequently used to detect the virus’s genetic materials in the body. Using this test, patients can know whether or not they’ve an active COVID-19 infection and can adjust their life-style accordingly (i.e., quarantine).

Pros
Minimally invasive – performed utilizing nasal swabs, throat swabs and tests of saliva or different bodily fluids
Allows for social distancing – while some molecular tests, together with RT-PCR, are sometimes carried out at a hospital or clinic, swabs may also be taken from the patient’s automotive or at residence
Fewer false negatives in some situations – deep nasal swabs can have fewer false negatives compared with other tests, comparable to throat swabs or saliva tests
Cons
Long turnaround times – in some situations, RT-PCR tests can yield results in the identical day or within one to two days, however test results taking as much as one to 2 weeks have been reported during the pandemic
False negatives – molecular tests have been shown to produce results that say the patient doesn’t have the virus after they truly do; the rates of false-positives have ranged from 2% to 37%
Uncomfortable for some people – deep nasal swabs will be uncomfortable for some people, especially small children
Antigen Tests
Antigen tests, which are carried out utilizing a nasal or throat swab, help detect specific protein fragments residing on the surface of the virus. These tests characteristic a high false-negative rate, nevertheless, resulting in many clinicians ordering molecular testing for patients with negative antigen tests who display the basic signs and symptoms of COVID-19.

Pros
Fast results: The test makes use of technology much like that used in a pregnancy test and yields results within minutes
Cons
Performed at a hospital or clinic: At-house antigen tests will not be widely available, so sufferers typically have to travel to a hospital or clinic to have this test performed
High false-negative rate: Antigen tests produce higher false-negative rates than molecular RT-PCR tests, with some evidence suggesting rates as high as 50%
Antibody Tests
Antibody tests look for particular antibodies generated by the immune system in response to a virus, together with SARS-CoV-2. Antibodies are proteins that the body produces to fight active invading viruses and active infections. This test can be known as a serological test, blood test and serology test and includes taking a pattern with a finger stick or blood draw.

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