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When I was filling out a volunteer application for a children’s hospital and was asked my blood type, I had to think twice. Though I was pretty sure it was O-positive, I wanted to confirm, so I called my mom to see if it was on my birth certificate. When I learned it wasn’t, I looked through my online health records and still had no luck. This got me wondering: How do you find out what your blood type is?
Knowing your blood type is important because it can tell you about how at risk you are for certain…
