%0 Journal Article %T Hypophosphatemia in the setting of metabolic bone disease: case reports and diagnostic algorithm %A Alvin Lee Day %A Kenneth G. Saag %A Sarah L. Morgan %J Archive of "Therapeutic Advances in Musculoskeletal Disease". %D 2018 %R 10.1177/1759720X18779761 %X Osteoporosis is the most commonly encountered metabolic bone disease, and metabolic bone-disease clinics have been established to assist in the diagnosis and treatment of uncommon causes of low bone-mineral density. Hypophosphatemia leading to metabolic bone disease may be encountered, and an understanding of phosphate homeostasis can aid in the diagnosis. Two cases of hypophosphatemia leading to low bone-mineral densities were seen at the University of Alabama at Birmingham Osteoporosis Clinic. We developed a diagnostic algorithm, and the laboratory values of each patient were tested with the algorithm. The algorithm, incorporating the use of a spot urine phosphate and spot urine creatinine level at the time of initial serum metabolic profile evaluation, accurately determined the cause of hypophosphatemia in each case %K diagnostic algorithm %K hypophosphatemia %K metabolic bone disease %K osteomalacia %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6047245/