The lumen is the size of the inside of the blood vessel. The
type of blood vessel that has a lumen approximately the same
diameter as a single red blood cell is a capillary.
The lumen is the size of the inside of the blood vessel. The
type of blood vessel that has a lumen approximately the same
diameter as a single red blood cell is a capillary.
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around 20
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Lumen
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2000 k
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Double-lumen PICC lines come in two colors. Red is the blood
access lumen or arterial lumen and blue is the blood return lumen
or venous lumen. Despite the names, neither lumen is leads to an
artery, but both lead into a vein.