Researchers in this study used healthcare failure mode and effect analysis (HFMEA) to identify and reduce errors during chemotherapy preparation. Nine potential failure modes were identified – wrong label, drug, dose, solvent, or volume; non-sterile preparation; incomplete control; improper packaging or labeling, and; break or spill – and the potential causes and effects. Potential approaches to reduce these failure modes include updating the Standard Operating Procedures (SOPs), implementing a bar code system, and using a weight-based control system.