Equations Flashcards by Lindsey Kaminski

Q

Fractional Shortening

A

(LVIDd - LVIDs) / LVIDd x100

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Q

Ejection Fraction

A

(EDV - ESV) / EDV x100

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Q

∆ P

A

4 (V2^2 – V1^2)

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Q

∆ P

A

4 (V2^2)

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Q

AVA (VTI)

A

.785 x LVOTd^2 x VTI LVOT/ VTI AV

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Q

AVA (VELOCITY)

A

.785 x LVOTd^2 x V1/V2

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Q

PHT

A

DT X .29

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Q

AVI

A

AVA/BSA

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Q

RV (SV)

A

SVtotal - SVforward

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Q

RF

A

RV/SVtotal X 100

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Q

EROA

A

RV / VTIrj

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Q

RV

A

EROA X VTIrj

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Q

JETd

A

JETd/LVOTd X 100

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Q

JETarea (regurgitant)

A

JETarea/LVOTarea X 100

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Q

MVA

A

SVlvot / VTImv

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Q

MVA

A

6.28 x r^2 x preorifice v / orifice v

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Q

MVA

A

220/PHT

Q

EROA (regurgitant)

A

6.26 x r^2 x V1 / V2

Q

TVA

A

220/PHT

Q

TVA

A

.785 x RVOTd^2 x VTIrvot/ VTItv

Q

PVA

A

.785 x RVOTd^2 x VTIrvot / VTIpv

Q

PPG

A

4 ( V^2)

Q

PI JETarea

A

JETwidth/ ANNULARwidth

Q

MPAP

A

79 - (.45 x PAC)

Q

MPAP 1/3 2/3

A

1/3 PASP + 2/3 PAEDP

Q

MPAP TR

A

MPG TR + RAP

Q

MPAP PI

A

4 (Max PI V^2) + RAP

Q

PVR

A

10 (Vtr) / VTI rvot

Q

PASP (no PS)

A

4 (Vtr^2) + RAP

Q

PAEDP

A

4 (PI edv ^2) + RAP

Q

PASP (PS)

A

[4 (Vtr^2) + RAP] - [4 (V ps^2)]

Q

LV MASS

A

1.05 (total vol - chamber vol)

Q

RWT

A

2 PWTd / LVIDd

Q

CO

A

SV x HR / 1000

Q

CI

A

CO / BSA

Q

∆ P / ∆ t

A

32 / time

Q

LVMPI

A

A - ET / ET

Q

STRAIN

A

L - LO / LO x 100

Q

SR

A

(V2-V1)/ D

Q

RVFAC

A

EDA - ESA / EDA x 100