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Table 1 Laboratory Tumor Lysis Syndrome criteria

From: Tumor lysis syndrome following trastuzumab and pertuzumab for metastatic breast cancer: a case report

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