Table 1 Laboratory Tumor Lysis Syndrome criteria
| Variable | Value | Change from baseline value |
|---|---|---|
| Uric acid | ≥8 mg/dL (476 mmol/L) | 25 % increase |
| Potassium | ≥6 mEq/L (or 6 mmol/L) | 25 % increase |
| Phosphorus | ≥4.5 mg/dL (1.45 mmol/L) | 25 % increase |
| Calcium | ≤7 md/dl (1.75 mmol/L) | 25 % increase |