Requirements before donating:
• Weigh more than 45 kg (100 lbs) for 250 ml of donated blood; 50kg (110 lbs) for 450 ml of donated blood
• Be aged 16-65 years (for ages 16 & 17, parental consent is need)
• Systolic BP =90-160 mm Hg
• Diastolic =60-100 mm Hg
• Hemoglobin at least 12.5g/dL