LSU HEALTH SHREVEPORT MOBILE COVID-19 TESTING LOCATIONS No pre-registration or appointment is required for this free COVID-19 test. All testing occurs inside vehicle and results are provided electronically by the LSU Health Shreveport Emerging Viral Threat Lab within 48-72 hours. The LSUHS EVT Lab has a 99.7% accuracy rate. Testing will occur weekly through December for the dates listed below. While insurance information is requested but not required, the presentation of a valid ID is needed to obtain a test at any LSUHS COVID-19 testing location.