Small group hemodynamics and starling forces Flashcards
1
Q
Flow equals
A
Change in pressure over resistance
2
Q
Mean arterial pressure
A
CO x TPR
3
Q
In a parallel circuit total resistance will
A
always be less than the resistance of the smallest circuit
4
Q
What would happen to total peripheral resistance in a in a parallel circuit if another circuit was added
A
It would decrease regardless of the magnitude of the newly added circuit
5
Q
What would be the effect of hematocrit on viscosity>
A
High hematocrit, in a situation like polycythemia would lead to high blood viscosity. Low hematocrit on anemia leads to low blood viscosity
6
Q
Determinants of resistance in laminar flow?
A
resistance = (8 x fluid viscosity x tube length)/ pi x radius to the fourth
7
Q
Murmurs more likely with low or high hematocrit
A
high
