Quest Diagnostics is located in the Summerlin Gateway Plaza on the corner of Lake Mead Blvd and Buffalo Dr. It offers services including routine lab tests, drug screens for DOT and non-DOT, pediatric specialty, and COVID-19 antibody testing by appointment. Hours vary by service type. Reviews describe a mix of experiences. Many praise the excellent and qualified staff, noting superb, exceptional, kind, humorous, professional, and good service. The blood draw process is frequently noted as smooth. Results are often received super fast, within 24 hours, which is considered impressive. However, the check-in process is frequently criticized as robotic, inflexible, cold, and automated, with many patients struggling with it. An appointment is mandatory. The waiting area can feature an overly loud stream of advertisements. The environment is described as super secure and sometimes weirdly mechanical. Accessing results requires an online account. Photos and videos are not allowed per privacy policies. Overall, while the administrative process can be frustrating, the phlebotomy staff receives consistent praise for their skill and demeanor, and the result turnaround time is viewed very positively.