According the there website below is more information,
Symptoms
Difficulty breathing or shortness of breath
Persistent pain or pressure in the chest
New confusion or inability to arouse
Bluish lips or face
When you arrive at the testing location, please follow instructions on the signage and given to you by onsite personnel.
Please note there are no public restrooms available at the test site.
If you receive an appointment, it is VERY IMPORTANT that you PRINT and bring your test voucher with you on the day of your test.
If you think you are eligible for FREE testing, click below to register (new users) or logon (returning users) https://scrcxp.pdhi.com/Portal/Member/4cb6782c-b48d-451e-96be-02d2a7b314a3