Zion Lab is a state of the art laboratory located in South Texas. Our focus at Zion Laboratory Services is to bring the highest quality testing with quick and accurate results to health care providers and their patients. Contact us at Zion Lab and find out how your practice can go to a higher level of care. We are a specialized laboratory, focused on Molecular PCR (Upper Resperitatory and Gastrointestinal Panels), we carry Toxicology and are exclusive laboratory providing the Bennett Polypharmacy Profile.