Glucocorticoid-Induced Bone Disease

A 55-year-old woman with severe, persistent asthma requiring glucocorticoid therapy for the past 3 months presents for care. Her medications include albuterol, inhaled fluticasone with salmeterol, montelukast, and prednisone (at a dose of 10 mg per day). In the past, she received several intermittent courses of prednisone at a dose of 15 mg or more per day. Her weight is 45.5 kg (100 lb), and her height 157.5 cm (62 in.); the body-mass index (the weight in kilograms divided by the square of the height in meters) is 18. Scattered wheezing is heard during expiration. Findings on vertebral percussion and rib-cage compression are unremarkable. How should her case be evaluated and managed to minimize the risk of fractures?