Environmental Sciences, asked by aishwaryamuraliraj, 6 months ago

How is blood test done?

Answers

Answered by vibha9559684214
4

Answer:

During a blood test, a small sample of blood is taken from your body. It's usually drawn from a vein in your arm using a needle.

Answered by aaptisunil
1
I think a small amount of blood is taken
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