Information For Patients

Quest Diagnostics



Quest Diagnostics

Coronavirus: What you need to KNOW

Our patients are our first priority—today and always. The communities where we live and work rely on Quest Diagnostics to give assurance during difficult times. We’ve always made it our mission to deliver on that promise.

As the pandemic continues to develop, we know you'll have a lot of questions about the coronavirus disease (COVID-19). We’re committed to helping you find the answers.

Find the right COVID-19 test for you

With two types of COVID-19 tests, you need the right information to determine which test may be right for you. Quest can help you get the answers you need about active infection and antibody testing, because KNOWING may get you back to a healthy, active lifestyle.

Learn more about each COVID-19 test option.



Your Peace of Mind at Quest

Woman using mobile device to queue in line

At Quest, we know that your day-to-day health needs can’t be put off, even during a pandemic. That’s why our doors remain open as an essential service.

We’re committed to doing everything we can to make it as easy and safe as possible for you to access routine lab services. So we’ve launched a Peace of Mind program at each of our more than 2,200 patient service centers across the country.

Get details

Simple steps for prevention

Protect yourself and your loved ones from COVID-19 with simple prevention methods. The CDC recommends that you:

  • Practice social distancing
  • Avoid touching your eyes, nose, and mouth
  • Stay home when you are sick
  • Cover your cough or sneeze with a tissue
  • Clean and disinfect frequently touched surfaces
  • Wash your hands often with soap and water
See more CDC resources

Quest on the front lines


News Update

Quest Diagnostics further expands COVID-19 testing capacity

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Since Quest began processing the highly complex COVID-19 tests on March 9, we have steadily increased testing capacity to meet the evolving needs of healthcare providers and patients in our communities.

So far, we’ve processed more than 3.15 million active infection tests and 1.5 million antibody tests.



With so much important information to consider about your health, you likely have a lot of questions about COVID-19 testing.

Find answers

Testing statements

The antibody tests (sometimes known as the serology tests or IgG tests) are intended for use as an aid in identifying individuals with an adaptive immune response to SARS-CoV-2, indicating recent or prior infection. Results are for the detection of SARS-CoV-2 antibodies. IgG antibodies to SARS-CoV-2 are generally detectable in blood several days after initial infection, although the duration of time antibodies are present post-infection is not well characterized. At this time, it is unknown for how long antibodies persist following infection and if the presence of antibodies confers protective immunity. Individuals may have detectable virus present for several weeks following seroconversion. Negative results do not preclude acute SARS-CoV-2 infection. If acute infection is suspected, molecular testing for SARS-CoV-2 is necessary. The antibody test should not be used to diagnose acute SARS-CoV-2 infection. False positive results for the antibody test may occur due to cross-reactivity from pre-existing antibodies or other possible causes.

  • The antibody tests and the molecular tests (together “All tests”) have not been FDA cleared or approved;
  • All tests have been authorized by FDA under EUAs for use by authorized laboratories;
  • The antibody tests have been authorized only for the detection of IgG antibodies against SARS-CoV-2, not for any other viruses or pathogens;
  • The molecular tests have been authorized only for the detection of nucleic acid from SARS-CoV-2, not for any other viruses or pathogens; and,
  • All tests are only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of in vitro diagnostics for detection and/or diagnosis of COVID-19 under Section 564(b)(1) of the Act, 21 U.S.C. § 360bbb-3(b)(1), unless the authorization is terminated or revoked sooner.
Have questions about COVID-19? Let’s chat.