| Initial laboratory tests |
| Complete chemistry profile (including alkaline phosphatase) |
| Complete blood count |
| Calcium, phosphorus |
| 25-hydroxyvitamin D |
| Additional laboratory tests if indicated |
| 24-hour urine for calcium and creatinine |
| 24-hour urine for free cortisol |
| FSH, LH |
| Prolactin |
| Magnesium |
| 1,25-dihydroxyvitamin D |
| Intact PTH |
| TSH |
| Celiac screen |
| Serum protein electrophoresis/urine protein electrophoresis |
| Erythrocyte sedimentation rate |
| Rheumatoid factor |
| Ferritin and carotene levels |
| Iron and total iron binding capacity |
| Serum tryptase and histamine levels |
| Homocysteine |
| Skin biopsy for connective tissue disorders |
| COL1A genetic testing for osteogenesis imperfecta |
| Serum and urine bone turnover markers |
