How do you distinguish the umbilical vein from the umbilical arteries when preparing to insert an umbilical venous catheter (UVC)?
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A
The vein is smaller and has a thicker wall; the arteries are larger and thin-walled
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B
The vein is a single, larger, thin-walled vessel; the two arteries are smaller with thicker, more muscular walls
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C
The vein is located at the 3 and 9 o'clock positions; the arteries are at 12 o'clock
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D
The vein has blue dye injected during delivery; the arteries do not