Why is blood sample (to test) taken from veins?
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Venous pressure is also lower than arterial pressure, so there is less of a chance of blood seeping back out through the puncture point before it heals. Because of their thinner walls,veins tend to be larger than the corresponding artery in the area, so they hold more blood, making collection easier and faster.
goldenjackal:
you are copiying exactly from google
no, this question lies also in my book.So, i had remembered from there.
oooo.....even i hv same book
Answered by
1
Venous pressure is also lower than arterial pressure, so there is less of a chance of bloodseeping back out through the puncture point before it heals. Because of their thinner walls, veins tend to be larger than the corresponding artery in the area, so they hold more blood, making collection easier and faster.
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