Why does the nurse prick your finger before they take your blood??

Question:

Answers:
They make a little blood come out because the first blood isn't as potent and clotting reasons.

Other Answers:
usually to check your iron

It's a sample to make sure your blood is healthy. how old are you?? Thats how they do it for kids.

To check iron levels or glucose levels in your body

Would you prefer somewhere else to draw blood?
Actually, they can prick the ear lobe.but most nurses will say they are only allowed to stick your finger.
The lobe is less painful for most people.
Demand a change - it's your body!

to test your blood before they remove it. The "obvious guy" answer would be "can't get blood if we don't prick" um. I think it helps to let the blood come out of your body?

I've never had this happen.

How else should she take your blood?

It's the quickest, least painful way to get enough blood for some tests. I assume you are talking about a situation where you are giving blood to the Red Cross (or some organization like that). If I am right, she is checking your blood for anemia. If you are anemic, she won't allow you to go forward with your blood donation, because it is hazardous to your health.

To check your iron levels.

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Why does the nurse prick your finger before they take your blood??

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