Physio Flashcards
1
Q
CO
A
HR X SV
2
Q
Compliance
A
Inversely related to elasticity
Change in volume/ change in pressure
3
Q
Laplace law
Wall tension =
A
Pressure x radius (r)
4
Q
Parallel circuits
Total resistance
A
Inversely proportion to individual resistance
5
Q
Flow (Q)
A
Resistance
6
Q
Resistance (R)
A
r (radius)
7
Q
Performance of heart
A
Contractility + preload
8
Q
MAP
A
CO X TPR
9
Q
Total ventilation
A
Tidal vol x RR
10
Q
Alveolar ventilation (Va)
A
(Tidal vol Vt - dead space Vd ) x RR
11
Q
PAO2
A
PiO2 - PACO2/R
12
Q
Partial pressure of gas
A
Fgas x Patm
13
Q
PiO2
A
Fgas x ( Patm - 47 )
14
Q
PFT - restrictive disease
A
Shift to RIGHT
15
Q
FEV1 / FEV in obstructive and restrictive diseases
A
Ratio decreases - obs
Ratio normal or inc - restrict
