Equations for Exam #2

Question 1

LAP

Answer 1

LAP = [ E (or Mmode velocity of MV E wave) / E’ (or tissue doppler velocity of MV) ] x 1.25 + 1.9

Question 2

RAP

Answer 2

RAP = est. IVC diameter and collape % age

Question 3

dp / dt

Answer 3

dp / dt = 32,000 / change in time

Question 4

VTI

Answer 4

VTI = Velocity x Time

Question 5

SV

Answer 5

SV = CSA x VTI

SV = LVED - LVES

Question 6

RV / PA Systolic

Answer 6

RV/PAs = (est. RAP) + (TR pk veloi=city) ^2 x 4

Question 7

RWT

Answer 7

RWT = 2 PWT / LVID

Question 8

LV MASS

Answer 8

LV MASS = 1.04 [ (LVEDd + LVISd+ LVP)^3 - LVEDd^3 ] x 0.8 + 0.6g

Question 9

CO

Answer 9

CO = SV x HR

Question 10

PAEDP

Answer 10

PAEDP = (est. RAP) + (PI velocity)^2 x 4