Confluence Health officially opened its new Pre-Anesthesia Testing Clinic with a ribbon-cutting ceremony on Tuesday. READ MORE: Confluence Health Announces New Cancer CenterConfluence said it marks a major advancement in surgical preparation. This work with patients varies for each person’s needs but includes reviewing medical history, essential diagnostic tests, medications, and evaluating and reducing risk factors as much as possible.”Confluence Health Confluence Health loading... Common tests performed in the PAT Clinic include complete blood counts, urinalysis, complete medical profiles, X-rays, electrocardiograms. “A PAT clinic also lowers preoperative admission time and helps to reduce the overall length of stay.