The action that the nurse should take after the procedure is completed concerning the remaining unit of blood is to discard the additional unit.
<h3>What is blood transfusion?</h3>
Blood transfusion is defined as the act of administration of blood and it's products to a recipient who is in need of it following a surgical or medical diagnostic procedure.
There are different types of donations which is acceptable to transfusion of which autologous transfusion is among.
This entails that the patient donates their blood for a future use and this is expected to be used on them alone.
Learn more about blood here:
brainly.com/question/25149738
#SPJ1