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The pulmonary vein is the most important vein found in the heart because it brings oxygenated blood from the lungs into the left atrium.

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Q: What is the most important vein?
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What is the most important factor in choosing which gauge needle to use for venipuncture?

Size and condition of the vein


What is the most important vein in the heart?

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In coding coronary procedures why is it important you know whether it is in an artery or vein?

I can not to answer