Hyperuricemia
Nausea/vomiting, lethargy, renal failure
Hyperkalemia
Most immediate life-threatening element (due to dysrhythmias)
Hyperphosphatemia
May combine with Ca to precipiate in renal tubules
Hypocalcemia
Anorexia, cramping, tetany, confusion, seizures, V-tach/torsades
Acute Renal Failure
Most common cause of morbidity
Usually results from uric acid precipitation within renal tubules
Nausea/vomiting, lethargy, renal failure
Most immediate life-threatening element (due to dysrhythmias)
May combine with Ca to precipiate in renal tubules
Anorexia, cramping, tetany, confusion, seizures, V-tach/torsades
Most common cause of morbidity
Usually results from uric acid precipitation within renal tubules
Tumor lysis syndrome
Malignant airway obstruction
Sepsis 
Bone metastases and pathologic fractures
Hemorrhagic shock
Malignant spinal cord compression
Neurogenic shock
Malignant Pericardial Effusion and Tamponade