Doctors, when you're taking someone's blood, how do you know where to put the needle? And how do you distinguish between a vein and an artery from looking at the skin?

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Fuldem Öğrenci İzmir 4 ay önce

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Doctors, when you're taking someone's blood, how do you know where to put the needle? And how do you distinguish between a vein and an artery from looking at the skin?

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Pauline Öğrenci Bitlis · 4 ay önce

...Why do you ask?

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Stephanie Winkel Öğrenci Bayburt · 4 ay önce

"When you draw blood you look for the three main veins in the crook of the elbow. The outermost one isn't often used just the middle and innermost. Tourniquet 6" above site then palpate to feel the veins, they feel spongy, tendon is hard. Not a doctor but was a certified phlebotomist. Never hit an artery? Didn't realize that was a huge concern. "

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Sehrish Öğrenci Isparta · 4 ay önce

Nice try heroin addict

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Sehrazat Öğrenci Sinop · 3 ay önce · Accepted Answer

Veins aren't that hard to locate. We tie a torniquet at the upper arm which usually makes the veins stand out. They look a bluish green colour on light skin but the most reliable way is to feel for the vein. Once the torniquet is on there veins can be very easily felt (of course there are exceptions). Arteries are actually much deeper in the body so we don't have to distinguish between them. When a situation comes that we need to draw arterial blood the procedure is completely different.

Doctors, when you're taking someone's blood, how do you know where to put the needle? And how do you distinguish between a vein and an artery from looking at the skin?

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