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Asked • 07/09/19

When giving blood, what is the specific Iron measurement they take?

I went to give blood the other day, and they take an "iron" measurement prior to actually drawing the blood. My level was 16.4 -- but what specific type of iron were they measuring? I've heard of ferritin, transferrin, iron binding cap, total, etc., but when I asked what the upper limit was, she said 19, which didn't really fit within the healthy ranges I can find for the above types.Thoughts?

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