Frequently Asked Questions

FAQs are intended to offer COVIDCheck Colorado clients and partners answers to common questions and participant concerns regarding the RT-PCR nasal test and testing experience.

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What kind of test am I getting? How sensitive is the test?

We currently use the Fulgent COVID-19 by RT-PCR nasal tests. This test is run through 40 cycles of PCR in order to detect the virus as early as possible. The test is highly sensitive in an analytic sense; if viral RNA is present in the sample, it is very likely to be detected. The only cases in which the virus may be present but go undetected are either because of sampling error or the biology of the disease (e.g. virus present in lower but not upper respiratory tract). For more information, you can find the FDA Emergency Use Authorization of the specific tests that we use.

How is the test different from other testing methods?

The nasal swab you receive at a COVIDCheck Colorado testing site may be shallow compared to other methods you have read about. COVIDCheck Colorado tests are performed with a nasal mid-turbinate swab, which compared to a nasopharyngeal swab, is less uncomfortable without compromising on accuracy. About 1% of the time a “test not performed” or “TNP” result will occur. This means that there was an issue with the sample (e.g. not enough material on the swab, damaged tube, or other reasons) and you should get a retest.

Who is administering the test?

All COVIDCheck Colorado medical staff are licensed Medical Assistants, Licensed Practical Nurses, or Registered Nurses. These team members are thoroughly vetted and trained to administer nasal mid-turbinate tests, and comply with all CDC and FDA recommended procedures throughout the testing process. CCC takes quality assurance very seriously and conducts daily checks to ensure all tests are being delivered safely and effectively.

What does the COVIDCheck Colorado testing experience encompass?

COVIDCheck Colorado offers participants a comprehensive testing experience that begins with registering for a test on our partner website. Simply follow the link your organization has sent out, complete the prompts to register an account, and select an appointment time that works with your schedule. On the day of your appointment a member of the CCC team will greet you upon arrival, ensure that you are checked in, and provide directions for which testing lane you should proceed to. When you arrive at the testing area a trained CCC medical team member will explain the sample collection process, complete the nasal swab required from both nostrils, and let you know that test results will be available within 72 hours. Depending on the contact information you provided during registration, you will receive a text message and/or email alert from PrimaryBio when your results are available. Should you notice that your results are delayed, please contact

What is the difference between quarantine and isolation?

Quarantine is for people who are not sick, but may have had exposure to someone with COVID-19. Individuals who are quarantined must stay at home so they don’t unknowingly spread the disease. Even if they are feeling well, quarantine lasts for 14 days after the last contact with a person who has COVID-19. During this time, they should watch for COVID-19 symptoms.

Isolation is for people who are already sick. This may be in the form of either a suspected (symptomatic) or confirmed case of Covid-19. Individuals in isolation must stay at home for at least 10 days, and at least 24 hours after fever has improved without the use of fever-reducing medication.

Do we retest positive cases to make sure there is not a "false" positive?

No–false positives are very rare. COVIDCheck Colorado’s RT-PCR test looks at two targets of the virus — if one is negative and one is positive, the result will come back as “Inconclusive,” which may indicate a false positive or represent low levels of virus. If a test result is Inconclusive, the individual should take precautions as though they are positive and retest.

If I tested positive in the past 3 months, should I get another test before I return to work?

After testing positive, a patient should not get a COVID-19 test for 90 days — often, the virus can linger in the body for months, despite not transmitting disease. So, while it may be tempting to return to a COVIDCheck Colorado testing site, please refrain from doing so. Your required isolation will have to begin again should you receive another “positive” result. Please follow up with your medical care provider if you have questions or concerns about your positive result.

What if a test comes back as Test Not Performed (TNP)?

A TNP result means that there was an issue with the sample (e.g. not enough material on the swab, damaged tube, or other reasons) and the patient should get a retest. Unlike a patient who receives an Inconclusive result, they are NOT presumed positive. Individuals receive instructions along with their results to schedule a retest.

What protocols are CCC testing sites following?

CCC testing sites are run in accord with CDC and CDPHE guidelines for PPE usage, social distancing, and hygiene. CCC performs regular quality checks at each test site to confirm appropriate use of PPE, social distancing, and other core protocols that ensure the safety of staff and patients.

Let’s get tested