A COVID-19 testing site with 24-hour results opened at the Rio Grande Valley Premium Outlets in Mercedes on Tuesday. 

The lab site will give up to 150 tests per day and will charge between $59 and $179 for antibody and antigen tests, according to QuestCap, a social-impact investment company.

The tests take 10 minutes to administer and provide results within 24 hours. 

The COVID-19 testing site is open every day from 7 a.m. to 9 p.m., according to its website. 

To schedule an appointment, go to www.testbeforeyougo.com.