LabOne, a part of Quest Diagnostics, offers risk assessment services and health care solutions. Quest Diagnostics provides pediatric and laboratory testing services throughout the United States. The company operates more than 2,000 patient service centers and over 180 regional and esoteric testing laboratories. It performs Pap smear examination for the detection of breast cancer. The company employs physicians and technologists who offer cancer screening services. Quest Diagnostics provides therapeutic monitoring services for the detection of cardiovasciular diseases and endocrine disorders. It offers health and wellness programs. Quest Diagnostics provides HIV screening and drug resistance testing services. It also offers health-related information.