The following list is a practical example from the Leiden University Hospital in the Netherlands, where indicators are sampled annually and reviewed by the Hospital Transfusion Committee. This identifies priorities and sets targets for evaluation.

Management of hospital stock

The number of expired products in the stock of the hospital blood bank divided by the total number of blood products in the stock of the hospital blood bank.

Prescription

The number of units of blood components (red cells, platelets and fresh frozen plasma) that are not prescribed according to the known guidelines, divided by the number of prescriptions for blood products (red cells, FFP, platelets) in the same period.

Ordering and wastage

The number of blood components (red cells, platelets and fresh frozen plasma) returned to the hospital blood bank by a department, divided by the total number of blood components supplied by the blood bank service to that department.

The number of blood components that are not transfused divided by the number obtained from the blood establishment.

Request forms

The number of blood product request forms lacking essential data divided by the total number of orders for blood components in the same period.

Patient and blood sample identification

The number of detected discrepancies in ABO and RhD typing of patients due to identification or labeling errors outside the transfusion laboratory divided by the total number of patient samples tested for ABO and RhD type screenings in the same period.

Compatibility testing

The number of detected discrepancies in ABO and RhD screening of patients due to errors in the transfusion laboratory divided by the total number of ABO and RhD type screenings performed in the same period.

Traceability

The number of units for which there is no record in the hospital blood bank or blood establishment of the final destination (transfused to an identified patient, destroyed or returned to the BE) divided by the number of units issued by the HBB or BE.