Sunrise Lab Agreement with United Healthcare/Oxford

Hauppauge, NY, October 5, 2006 — Sunrise Medical Laboratories announced it has signed an amended agreement with United Healthcare Ins. Co and its Affiliates, including Oxford Health Plans
(“United”) to continue to provide laboratory services for ALL United Healthcare and Oxford
plan members in the Tri-State area.

“This amended agreement represents our commitment to work with quality managed care
organizations and we are extremely excited about United’s new laboratory network” stated
Larry Siedlick, CEO of Sunrise Medical Laboratories. He added “Patient access will be
available through our existing network of couriers and seventeen Patient Service Centers.
Patient access will be improved as new locations are added as a result of this agreement.”

Founded in 1972, Sunrise Medical Laboratories is a leading regional provider of diagnostic
lab services for physicians, hospitals and clinical laboratories, offering advanced biomedical
testing services that support the prevention, diagnosis and treatment of medical diseases.
Sunrise is the industry leader in electronic reporting and laboratory-physician computer links
with its trademarked SunData xT System, supplying a direct computer link between the lab
and the various clinical settings where patients are seen.

The New York-based clinical laboratories employ over 300 professionals and provide
services through an extensive courier network as well as Patient Service Centers throughout
the Long Island and New York metropolitan area. For more information about Sunrise
Laboratories and its services, call 1-800-782-0282 or visit