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Best Answer: O positive ok for transfusing to all positive types. O negative is a unversal to all types. So you cannot donate blood for an O negative if you are O positive. If you just want to donate plasma then you can donate, just not whole blood.
You can donate to people with A+, B+, AB+ or O+. You only get blood from someone that is O+ though. People with positive blood cannot donate to people with negative blood and vice versa.ike An O+ donor can give to A+, B+, or AB+, as long as the type, screen, and crossmatch is compatible. If in EXTREME emergencies, you can give O-blood to anyone, but ONLY O-because it lacks any red blood cell surface antigen,and therefore won't cause a hemolytic transfusion reaction. O-people are universal donors.