Quest Diagnostics Downey Brookshire offers a variety of lab testing services, including COVID-19 antibody testing, routine lab tests, pediatric specialty, glucose tolerance test, and Blueprint for Wellness. The location features a glass building on the corner of Brookshire and Iowa Street, with the main cross street being Firestone. Patients are advised to schedule appointments in advance, as this can significantly reduce wait times. The staff is generally described as great, with one reviewer particularly satisfied with the phlebotomist, Alma Nieve. However, some customers have noted that the blood drawing process could be improved, with suggestions of providing training to staff. Overall, the location provides quick service and a positive experience for those who schedule appointments.