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Test Portfolio

COVID-19 Rapid Antigen Test

Sofia SARS Antigen FIA, Rapid Test

The Sofia SARS Antigen Fluorescent Immunoassay (FIA) from Quidel uses advanced immunofluorescence-based lateral flow technology in a sandwich design for qualitative detection of nucleocapsid protein from SARS-CoV-2. The Sofia SARS Antigen FIA, with the Sofia 2 and Sofia analyzers, provides automated and objective results in 15 minutes, allowing for COVID-19 testing of symptomatic patients within the first five days of symptoms and asymptomatic patients when tested serially.

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What's New

Frequently Asked Questions (FAQ) about COVID-19 Testing

How do I order the Long Hauler testing?

You can now order the Covid long haulers test through our website here:

What are your working hours?

The lab personnel are working most of the day.

Our patient service hours to schedule a test or blood draw are below,

Monday through Friday 8:30 am-1:30 pm CST

Saturday- 8:30 am- 12:00 pm CST

We are closed on Sunday.

How do I contact Radiance Diagnostics after hours?

If you wish to contact us on holidays or after hours, please email us your question or requests to

Is Radiance Diagnostics a certified lab?

We are CLIA certified high-complexity laboratory.

Where do you do your laboratory testing?

Radiance Diagnostics has a patient service center and a certified clinical laboratory on site.

All the specimens collected/received at our testing service are processed in-house at our Naperville location itself.

Do you have any other branches?

No, we do not have any branches currently, other than our Naperville location.

Do I need an appointment for testing with Radiance?

Yes, all our services are by appointment only.

How do I order a test?

Please follow the link below and select from the list

How do I schedule my appointment?

You can schedule an appointment for yourself or a loved one

Order your test using the link below, upon checkout you will be directed to our scheduling page

How do I modify my appointment?

You can modify the appointment yourself from the link sent in the confirmation email. Choose the appropriate date and time or call our office at 630 995 3722.

How do I cancel my appointment?

You can cancel the appointment yourself from the link sent in the confirmation email within 24 hours prior to the appointment or by calling our office at 630 995 3722.

Please note there may be cancellation fees that might apply.

How do I get my refund?

The refund will go back to the card used for payment as per the cancellation policy mentioned at the time of making an appointment. Please allow 5-10 standard bank business days to see the refund.

It’s very important to check the email and the card and or account you used to make payment before calling the office. If your friend or family made the appointment and used their card, please ask your friend for the email and the credit will go to your friend’s account.

If you paid by PayPal, please check your PayPal account and not the credit card as the payment will go back to the same payment method used.

If you did not cancel the appointment, there is no refund. Also, once the test (s) are completed there is no refund.

The test I want to order is not listed in your website, what do I do?

Please send us an email with the name of the test and when you want to get tested. We will be able to assist you with most of the tests even if it’s not listed here.

What is the turnaround time for COVID-19 RT PCR?

All COVID-19 RT PCR results are reported on the same day or within 24 hours of sample collection and /or receipt by Radiance Diagnostics.

What sort of preparation is required for RT-PCR testing for COVID-19?

Please bring a valid Passport or a government-issued photo ID at the time of testing and wear a mask.

What kind of swab is collected for COVID-19 RT-PCR?

Nasopharyngeal swab

Do you have drive-through testing for COVID?

No, we don’t provide drive-through testing

If I get tested on a Saturday, when will I get my test result?

All results are sent via email as a pdf attachment within 24 hours irrespective of any holiday or weekend. Please make sure to check the spam folder as well.

It’s Past my turnaround time for results and I didn’t get my report, what do I do?

Please call the front desk at 630-995-3722 during the patient service hours or email us at

Will my test (s) be covered by insurance?

We do not accept insurance at present. It’s self-pay. However, we do provide itemized bill with lab provider information via email as PDF attachment, which can be used for insurance claims by you. Radiance diagnostics is not responsible for your insurance claims.

Can I walk in for testing?

Appointments are required. Please order your tests online and take appointment through our website

What is the COVID-19 test cancellation policy?

Cancellation and Refund Policy for COVID-19 testing
All orders/appointments for COVID-19 testing must be canceled or modified online within 24 hours prior to the appointment. There is a non-refundable cancellation fee of $20, which includes the fees charged by banks and Radiance Diagnostics administrative fees. Appointments canceled less than 24 hours to the testing will incur a fee of 50% of the test cost. There is no refund for no shows or after the testing/service is completed. Also, there is no fee for rescheduling.

Which test (s) should I order for COVID Long Haulers.

Please consult your physician to see which test is required as per your health condition

What are the tests you offer for COVID long haulers?

We offer the following tests to help determine the long hauler condition or for monitoring the treatment

  • Incelldx developed Cytokine 14 Panel
  • Incelldx developed SARS COV2 S1 Immune Subset Panel
  • CDC Panel which Includes – CMP, CBC, CRP, Ferritin, Liver Function panel [Albumin, ALP, ALT, AST, CGT, Bilirubin, Lactate dehydrogenase, Prothrombin time (PT)], Total protein, Thyroid Function test, Vit B12, Vit D, Complete Urinalysis.
  • Neutralizing antibody test

Radiance Diagnostics is located at 1240 Iroquois Ave, Suite 300, Naperville, IL 60563 near the Chicagoland areas: