Rapid Antigen

Est. 1-4 hour results


CareStart COVID-19 Rapid Antigen – Orange County

CareStart COVID-19 Antigen tests are authorized for use in laboratories certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA), 42 U.S.C. §263a that meet requirements to perform high, moderate, or waived complexity tests.

Access Bio, Inc. CareStart COVID-19 Antigen Test is a non-invasive shallow nasal swab.

Rapid Antigen testing is intended to detect current infection of COVID-19. The nasal swab sample is used to identify SARS-CoV-2 via certain proteins present on the virus’s surface. While the test can positively detect and diagnose COVID, it does not differentiate between the original strain and the COVID Delta variant.

Rapid Antigen tests provide same-day COVID testing with up to 96% accuracy with existing COVID symptoms. Most patients receive their results within 1-4 hours after testing. Depending on volume, your COVID test results can be processed and ready in as little as 15 minutes.


1 x Rapid COVID-19 Antigen Nasal Swab Test

We are conveniently located at Hoag Hospital in Irvine. Our COVID test sites serve patients across Orange County and the greater Los Angeles metro area, including Irvine, Santa Ana, Lake Forest, Mission Viejo, Newport Beach, Huntington Beach, Orange, Anaheim, Costa Mesa, Foothill Ranch, Ladera Ranch, Laguna Beach, Laguna Nigel, Dana Point, Rancho Santa Margarita, Coto de Caza, and Aliso Viejo.

Rapid Antigen testing identifies current COVID-19 infections by detecting proteins specific to SARS-CoV-2 on the virus’s surface. The diagnostic test is performed in the comfort and convenience of your vehicle through a quick and non-invasive nasal swab. The sample specimen can be processed on-site, returning results to patients in as little as half an hour or less depending on volume.

Antigen tests are rapid diagnostic tests. Our COVID test sites can have your results ready in 1-4 hours. However, depending on volume, test results can be available in just 15-30 minutes.
Rapid Antigen tests are up to 96% accurate with COVID-19 symptoms and 80% accurate without them. These tests are most accurate 4-5 days after exposure to the virus when there are higher amounts of the virus in your body. You can easily schedule a rapid COVID test in Orange County online through our website.
In addition to Rapid Antigen testing, our facility also offers Rapid PCR testing and the IgG/IgM Rapid Antibody Test. PCR tests are another nasal swab test that detect current coronavirus infections, instead identifying COVID on a molecular level through its RNA. Rapid PCR testing can be processed on-site to give you your results in an hour. For Laboratory Processed results, we also offer Same-Day and Next Day PCR testing. Antibody tests detect previous SARS COVID infections through identifying antibodies produced after previous infection full vaccination. This test typically takes between 1-4 hours, depending on volume.

Rapid diagnostic tests identify and diagnose COVID-19 quickly by using an upper respiratory sample to detect the virus. These tests include both RT-PCR and Antigen testing. Patients can receive their test results in less than an hour, within the same day, or by the next day. Depending on the specific test, nasal swab samples are either processed on site at our testing facility or sent to a laboratory. Rapid same-day PCR testing must be scheduled before 10:30 for High-Complex Lab to receive and process the specimens and return the results by 9pm via email. You can easily book a rapid COVID test in Orange County through our website.

If your COVID test results come back positive, please follow the CDC’s guidelines on self-isolation until you are no longer contagious, regardless of whether you experience symptoms. Most people’s cases are mild, and they can recover fully at home before returning to their normal life after 10 days of isolation, including from others in your household. However, you should contact your healthcare provider if your symptoms worsen. If you have been fully vaccinated, your healthcare provider may also recommend another COVID test, such as the PCR test, to confirm your diagnosis.
While Rapid Antigen testing is highly accurate, like all diagnostic tests, there is a chance of producing false positive COVID test results. If this occurs, you should self-isolate yourself and schedule a supplementary rapid PCR test. PCR tests, or molecular tests, are considered the Gold Standard of COVID testing because they are more sensitive and detect SARS-CoV-2 through its RNA genetics. 1-hour, Same-Day, and Next-Day PCR tests are available.

Swab tests like the Rapid Antigen test take a specimen sample of your upper respiratory system through a non-invasive lower nasal swab. These tests are used to find a virus that is currently in the body, allowing a healthcare provider to diagnose current COVID infections. A blood test instead looks for whether you have previously contracted the virus through detecting COVID antibodies. The immune system starts producing these antibodies 2 weeks after infection or finishing your last vaccination dose. Blood tests cannot identify current infections and therefore cannot be used for diagnostic purposes.

If your test results come back negative and you do not experience COVID-19 symptoms, it is still recommended by the CDC that you self-quarantine for two weeks after your last exposure. However, if you have symptoms, an additional test may be required. A negative test result doesn’t guarantee that you aren’t infected. If collected too early (earlier than 4-5 days after exposure), there may not have been enough of the virus present for the Antigen test to detect. A second (PCR) test can help confirm a negative test result.

You should schedule a COVID test if you experience COVID-19 symptoms (including loss of taste or smell, fever, chills, fatigue, shortness of breath, coughing, muscle aches, and more) or have come within 6 feet of someone who has tested positive. Additionally, we recommend getting tested if you have been to large and crowded gatherings. You may also be required to get tested by schools, workplaces, airports, theme parks, and certain locations, such as when traveling across state or country lines. If you’re traveling internationally, please check your destination’s testing requirements before scheduling your COVID test.

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