Equations Flashcards
(40 cards)
1
Q
Fractional Shortening
A
(LVIDd - LVIDs) / LVIDd x100
2
Q
Ejection Fraction
A
(EDV - ESV) / EDV x100
3
Q
∆ P
A
4 (V2^2 – V1^2)
4
Q
∆ P
A
4 (V2^2)
5
Q
AVA (VTI)
A
.785 x LVOTd^2 x VTI LVOT/ VTI AV
6
Q
AVA (VELOCITY)
A
.785 x LVOTd^2 x V1/V2
7
Q
PHT
A
DT X .29
8
Q
AVI
A
AVA/BSA
9
Q
RV (SV)
A
SVtotal - SVforward
10
Q
RF
A
RV/SVtotal X 100
11
Q
EROA
A
RV / VTIrj
12
Q
RV
A
EROA X VTIrj
13
Q
JETd
A
JETd/LVOTd X 100
14
Q
JETarea (regurgitant)
A
JETarea/LVOTarea X 100
15
Q
MVA
A
SVlvot / VTImv
16
Q
MVA
A
6.28 x r^2 x preorifice v / orifice v
17
Q
MVA
A
220/PHT
18
Q
EROA (regurgitant)
A
6.26 x r^2 x V1 / V2
19
Q
TVA
A
220/PHT
20
Q
TVA
A
.785 x RVOTd^2 x VTIrvot/ VTItv
21
Q
PVA
A
.785 x RVOTd^2 x VTIrvot / VTIpv
22
Q
PPG
A
4 ( V^2)
23
Q
PI JETarea
A
JETwidth/ ANNULARwidth
24
Q
MPAP
A
79 - (.45 x PAC)
25
MPAP 1/3 2/3
1/3 PASP + 2/3 PAEDP
26
MPAP TR
MPG TR + RAP
27
MPAP PI
4 (Max PI V^2) + RAP
28
PVR
10 (Vtr) / VTI rvot
29
PASP (no PS)
4 (Vtr^2) + RAP
30
PAEDP
4 (PI edv ^2) + RAP
31
PASP (PS)
[4 (Vtr^2) + RAP] - [4 (V ps^2)]
32
LV MASS
1.05 (total vol - chamber vol)
33
RWT
2 PWTd / LVIDd
34
CO
SV x HR / 1000
35
CI
CO / BSA
36
∆ P / ∆ t
32 / time
37
LVMPI
A - ET / ET
38
STRAIN
L - LO / LO x 100
39
SR
(V2-V1)/ D
40
RVFAC
EDA - ESA / EDA x 100
