Labelling:

All blood bottles should be labelled clearly and correctly in the presence of the individual who it has been taken from. This is to prevent any mislabelling with the incorrect details and reduces the risk of misidentification of individual samples.  

Bottles should be labelled clearly using black ink. Some providers use specially barcoded labels which will have the details of the individual on, they should be placed around the tube covering the label already on the bottle.