BRCA1 and breast cancer: Clinicians face a multitude of options when ordering hereditary genetic testing for breast cancer risk, including single-gene tests such as those limited to BRCA1/2, multi-gene panels including genes associated with a high risk of breast cancer, panels for genes associated with multiple common cancer types (e.g., breast, gynecologic, and gastrointestinal), and comprehensive panels including genes associated with both common (e.g., prostate) and rare (e.g., sarcoma) cancers.