Physics help, blood pressure?

Question

Can someone help me with this problem? I keep getting answers that don't make any sense for a real blood pressure. Here's the link:

http://www.flickr.com/photos/28859420@N07/2751309492/

Thanks.

Answer 1

I haven't done the math, but you should be aware that normal blood pressure is measured in the arteries not the veins

http://en.wikipedia.org/wiki/Blood_press...

while blood is taken from and intravenous drips enter the veins just because the pressure in the veins is so much lower.

(The wikipedia page cites:

"Venous pressure is the vascular pressure in a vein or in the atria of the heart. It is much less than arterial pressure, with common values of 5 mmHg (0.7 kPa) in the right atrium and 8 mmHg (1 kPa) in the left atrium." while arterial pressure is an order of magnitude greater.)