ER Wait Time | Door To Provider: minutes If this is a life threatening emergency, call 911. Laboratory Knapp Medical Center Laboratory does 98 percent of all laboratories onsite, allowing for faster turnaround time for physicians and their patients. With its state-of-the-art PCR system, the Knapp Medical Center Laboratory provides fast and accurate laboratory testing that allows physicians to quickly begin the appropriate treatment for their patients. Services Offered: Chemistry Toxicology (therapeutic drug testing) Immunology Urinalysis Blood Bank Hematology Pathology (Histology) Microbiology Virology Samples collected for testing come from a variety of bodily fluids, including blood, urine, serum, spinal fluid, synovial fluid, peritoneal fluid, sputum and pleural fluid as well as stool. Hours of Operation: Monday through Friday, 6 a.m. – 6 p.m. For after-hours labs, patients will need to register with the Emergency Department and then be directed to the main lab. Contact: Laboratory Services Phone: 956-969-5244 Fax: 956-969-0313 Services Knapp Services Cardiopulmonary Critical Care/ICU Diabetes Emergency Care Family Practice Residency Clinic Gastroenterology Imaging Services Internal Medicine Residency Clinic Laboratory Neurological Care Nutrition Orthopedics Outpatient Services Pediatrics Rehabilitation Services Surgical The Wound Center at Knapp The Clinic - in Weslaco Women's Health Services Information Center COVID-19 Patient and Visitor Information About Prime Healthcare My Chart - Patient Portal Make a Payment CME Conference Registration Careers Volunteering at Knapp ABOUT US ABOUT PRIME HEALTHCARE FOR PATIENTS MY CHART - PATIENT PORTAL SITE DISCLAIMER AFFILIATION LETTER SERVICES FIND A PROVIDER CAREERS CONTACT US NEWS PRIVACY POLICY Knapp Medical Center 1401 East 8th Street Weslaco, TX 78596 956-968-8567 Get Directions Copyright © 2021 Privacy Policy Site Map Website Accessibility A member of Prime Healthcare www.primehealthcare.com