# CVR9

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 Author: Bobopudge ID: 67503 Filename: CVR9 Updated: 2011-03-31 10:50:01 Tags: CVR Tension Laplace flow equations Folders: Description: Hemodynamics Show Answers:

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1. This is the equation for Ohm's law for fluids
• Q = ∆P / R
• Q flow
• P pressure
• R resistance
2. Volume of blood that goes through a region per minute
Blood flow
3. What is pulmonary arterial pressure?
25/8
4. Venous pressure in the right atrium and the big veins
Central venous pressure
5. This is the formula for Resistance:
• r = radius
• l = length
• n = viscosity
6. Combined resistance of all blood vessels
Total peripheral resistance
7. This is the equation for velocity
• Q = flow
• A = cross section
8. This is the normal pattern or way that blood flows
• laminar flow
• R < 2000
9. This is the pattern or way that too fast blood flows
• turbulent flow
• R > 2000
10. What do you call a dilated blood vessel, in a bad way haha?
aneurysm
11. This is the equation for Tension-Pressure relationship:
• P = pressure
• r = radius
• h = wall thickness
• If a vessel has an aneurism (dilation) then the tension will rise. Now if there's a sudden increase in pressure you can blow up this vessel. Ouch
12. Measuring velocity using ultrasound:
• Vs = speed of sound
• yeah whatever
13. Pressure-Tension relationship
• If a heart is dilated, more tension made to keep up the pressure
• Its bad for the heart

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