When giving blood, approximately 470mL of blood will be donated (7% - 8% of the blood volume of an average adult, i.e. approx. 1.5 cans of soft drink), plus 15mL for test samples.
Every day hundreds of people in New Zealand need blood or blood products, donated by voluntary blood donors, to help save their lives.
Before they can receive it, donated blood is tested and processed to ensure it is safe for the patients receiving it.
Red Cell Component of blood only last for 35 days.
Platelets only last for 7 days.
Therefore maintaining an adequate blood supply at all times is crucial and is only possible thanks to the regular donations from healthy blood donors.