Management of immune checkpoint inhibitor hematologic toxicity. *Recommended thresholds for holding therapy are 1500/µL neutrophils, 75 000/µL platelets, and 8 g/dL serum hemoglobin concentration. **Please be aware of the possibility of Duffy null associated neutrophil count (previously designated “benign ethnic neutropenia”) among patients of African or Middle Eastern ancestry. CBC, complete blood cell count.