A client has been diagnosed with metastatic breast cancer to…

A client has been diagnosed with metastatic breast cancer to the bones. Upon assessment, the nurse’s findings include:  reports of increased thirst, polyuria, and decreased muscle tone in bilateral lower extremities.  Lab values reveal:  sodium 139 mEq/L, potassium 4.0 mEq/L, phosphate 4.4 mg/dL, and calcium 14.2 mg/dL. Based on the clinical manifestations and lab findings, the nurse recognizes which condition: