Case History: Mrs B is a 67-year-old white woman with a recent dual-energy x-ray absorptiometry (DXA) scan reporting a T score of -2.4 at the femoral neck. She takes calcium and vitamin D daily, but her T score has decreased over the past 2 years. Her mother had a hip fracture at age 75. Because of her family history, Mrs B is concerned about the continued bone loss in her hip.