Get Directions Call Us HSHS Sacred Heart Laboratory 900 W Clairemont Ave | Eau Claire, Wisconsin 54701 (715)-717-4121 Our laboratory operates 24 hours a day, seven days a week to ensure your tests are processed in a fast, effective way. Learn about HSHS Sacred Heart Laboratory Our lab is certified by Clinical Laboratory Improvement Amendments (CLIA) to perform high complexity testing and we are highly accredited. p Hours of Operation Sunday through Saturday 12 A.M. to 11:59 P.M. s Learn More Learn more about our laboratory. How can we help you today? Select Select Women's Health Cardiovascular Cancer Center Submit