Case Report

The Foot That Broke Both Hips: A Case Report and Literature Review of Tumor-Induced Osteomalacia

Table 2

Laboratory tests recommended in cases of suspected TIO.

Serum phosphorus
Serum calcium
25-Hydroxyvitamin D
1,25-Dihydroxyvitamin D
Parathyroid hormone
Alkaline phosphatase (bone-specific form if available)
24-hour urine collection for phosphorus, calcium, and creatinine
Fibroblast growth factor 23
Serum protein electrophoresis and immunofixation
Urine monoclonal proteins, kappa and lambda chains