Important Cardiac Phys Formulas Quiz 2 Flashcards
1
Q
Mean Arterial Pressure
A
CO x TPR
2
Q
CO
A
SV x HR or Oxygen consumption / ( P of Arterial - P of Venous oxygen concentrations
3
Q
Ejection Fraction
A
SV/EDV
4
Q
Preload
A
= Central Venous Pressure
5
Q
Afterload
A
= Arterial pressure
6
Q
Flow
A
Q = Change in Pressure / Resistance
7
Q
Resisitance
A
viscosity / r^4
8
Q
Net filtration rate
A
Starling Forces/Hypotheis
K [(Pc-Pi) - (Oncotic c-Oncotic i)
K is a constant expressing how readily fluid can move across capillaries
9
Q
TPR
A
1/TPR = 1/R1 + 1/R2 + 1/R3 ….
Adding an organ will decrease TPR (pregnancy)
Decreasing resistance in any organ will decrease TPR.
10
Q
Pulse Pressure
A
Ps-Pd
SV/Ca (arterial compliance)
