Visit APEX Urgent Care Clinic in Katy and Richmond for COVID-19 antibody testing 7 days a week, without an appointment needed. We can now draw blood and send to Quest Diagnostics for their COVID-19 antibody test and get results in 72 hours. For insured patients, your urgent care copay would be collected at the time of service and refunded if the insurance company pays for the visit in full. A cash pay option is available as well. Appointments are not needed, but can be made here – https://www.clockwisemd.com/groups/808.