CVR9
Card Set Information
Author:
Bobopudge
ID:
67503
Filename:
CVR9
Updated:
20110331 10:50:01
Tags:
CVR Tension Laplace flow equations
Folders:
Description:
Hemodynamics
Show Answers:
This is the equation for Ohm's law for fluids
Q = ∆P / R
Q flow
P pressure
R resistance
Volume of blood that goes through a region per minute
Blood flow
What is pulmonary arterial pressure?
25/8
Venous pressure in the right atrium and the big veins
Central venous pressure
This is the formula for Resistance:
r = radius
l = length
n = viscosity
Combined resistance of
all
blood vessels
Total peripheral resistance
This is the equation for velocity
Q = flow
A = cross section
This is the normal pattern or way that blood flows
laminar flow
R < 2000
This is the pattern or way that too fast blood flows
turbulent flow
R > 2000
What do you call a dilated blood vessel, in a bad way haha?
aneurysm
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
Measuring velocity using ultrasound:
Vs = speed of sound
yeah whatever
PressureTension relationship
If a heart is dilated, more tension made to keep up the pressure
Its bad for the heart