Blood Test (Guardant Shield™) for Screening of Colorectal Cancer in Underserved Patients

PRIMARY OBJECTIVES: I. Recruit women age 45 years and older who are in need of colorectal cancer screening from minority and underserved populations via a community mammography van. II. Obtain data regarding knowledge, attitudes and beliefs about colorectal cancer screening. OUTLINE: Participants undergo blood specimen collection and complete survey on study. Participants may optionally undergo standard of care FIT testing on study.