Check the three basic whole blood donation rules used by most blood services, which are age, weight and the interval since your last donation.
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- Risk spectrum with your position marked
- Reference ranges from the original publication
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Scientific references
The core rules
Most services require donors to be at least 18, weigh at least 50 kg and wait 12 weeks between donations for men and 16 weeks for women, reflecting the slower recovery of iron stores in menstruating women.
What this check does not cover
- Hemoglobin is tested on the day with a finger prick
- Travel, tattoos, medications and illnesses add temporary deferrals
- Chronic conditions are reviewed individually by the blood service
Understanding your result
Meeting the three basic rules means you will likely pass the first screening gate, but the on site health questionnaire and hemoglobin test make the final call.
Preparing well
Eat iron rich foods in the weeks before donating, hydrate the day of, and sleep well the night before.