e. Rejecting Donor Blood. If a blood unit appears abnormal in any way, it
should not be used. The blood unit should not be used if:
The blood unit looks purple or brown.
Clots are visible.
There is an obvious breakdown of blood cells.
There is leakage from the container.
f. Warming of Blood. In cases where a large amount of blood is to be
transfused at one time, the blood will need to be warmed. If too much cold blood is
transfused at once, the patient can go into shock caused by hypothermia. Examples of
blood warming coils are shown in Figure 3-6. Use of these coils should be directed by
Figure 3-6. Example of warming coils.