Question: how to know if you are eligible for blood donation?
Answer: To donate blood or platelets, you must be in good general health, weigh at least 110 pounds, and be at least 16 years old. Parental consent is required for blood donation by 16 year olds; 16 year olds are NOT eligible to donate platelets. No parental consent is required for those who are at least 17 years old.