Meridian Valley Lab was the first lab in the USA to offer urine hormone testing to help doctors use Bio-identical Hormone Replacement Therapy safely and effectively. We are proud of our comprehensive, extensive internal quality control and quality assurance measures. In addition to our own quality assurance program, we participate in proficiency testing services with the College of American Pathologists and the American Association of Bioanalysts. Meridian Valley Lab is CLIA Certified.