Part 2 of the Primary Care Version CME focuses on why stool blood testing should be offered to patients and the elements of high-quality stool testing, such as selecting an effective test, identifying eligible patients, communicating with patients effectively, high-quality test handling and processing, and ensuring high test completion rates and follow-up after abnormal test results. It is the second of three parts of a continuing education activity that provides guidance and tools for clinicians on the optimal ways to implement screening for colorectal cancer to help ensure that patients receive maximum benefit. Comments on this video are allowed in accordance with our comment policy: http://www.cdc.gov/SocialMedia/Tools/CommentPolicy.html This video can also be viewed at http://www.cdc.gov/cancer/videos/colorectal/quality/Primary_Care2/CRC_Screening_Optimizing_Quality_Primary_Care2_256k.mp4