Factors associated with wrong blood in tube errors: an international case series - The BEST collaborative study.

Wrong blood in tube (WBIT) errors can be classified as intended patient drawn/wrong label applied or wrong patient/intended label applied. In this international study, errors were divided almost evenly between the two types and most were a combination of protocol violations (e.g. technology not used or not used appropriately) and slips/lapses (e.g., registration errors). Additional contributory factors and recommendations for improvement are also discussed.