Dec
20
What’s the point of giving double red cells instead of whole blood?
You’re allowed to give whole blood every 8 weeks, but you can only give double reds every 16 weeks. Doesn’t giving double the red cells half as often yield the same amount of red cells, but without the other blood components? How is this helpful?
You are quite right as to the quantity of red cells donated, but there is the convenience to you of only needing to attend half as often. As you say, they do not then take all the plasma components. It seems that the blood banks have rather more need for red cells and less need for plasma components, so offering some donors the chance to give double donations is a neat way of balancing the requirements.
Kryten’s double polaroid – Red Dwarf – BBC comedy
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