Table 1. Cairo-Bishop definition of laboratory TLS for adults [adapted from reference (2)].

Variable	Value	Change from baseline value
Uric acid	≥8 mg/dL (476 micromol/L)	25% increase
Potassium	≥6.0 mEq/L (or 6 mmol/l)	25% increase
Phosphorus	≥4.5 mg/dL (1.45 mmol/L) for adults and ≥2.1 mmol/L (6.5 mg/dL) for children	25% increase
Calcium	≤7 mg/dL (1.75 mmol/L)	25% decrease

TLS, tumor lysis syndrome.