Redwood Lab Services is now open at 25321 I-45 N., Ste. C, Spring, offering services such as prescription drug monitoring, allergy testing and blood wellness testing, Mondays through Fridays. Saturday hours will be added in the future. This is the laboratory's first location open to the public. Patients must have a doctor's order for blood work. The center is located near Rayford and Sawdust roads and the H-E-B grocery store. 281-378-2116. www.redwoodlabservices.com