When donating, you will give around 470mL of blood. This is about 7% - 8% of the blood volume of an average adult, or 1.5 cans of soft drink, plus 15mL for test samples.
Official website of New Zealand Blood Service
0800 448 325 | 0800 GIVE BLOOD
Donor Refreshments
An important part of the blood donation process includes the recovery period after the donation where donors are encouraged to rehydrate and relax for 10 15 minutes.
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