Spurious Hyperphosphatemia in a Patient with Multiple Myeloma: A Case Report

Abstract

Spurious hyperphosphatemia has been reported periodically in multiple myeloma (MM) patients with paraproteinemia. It is important for clinicians to recognize this phenomenon in order to avoid misdiagnosis and unnecessary treatment for true hyperphosphatemia. This case report demonstrates a case of spurious hyperphosphatemia in an MM patient whose serum phosphate could be normalized by deproteinization of a blood sample, a simple and widely available correction technique.

Keywords

• hyperphosphatemia
• multiple myeloma
• paraprotein
• pseudohyperphosphatemia
• spurious