ECHO MASTER LIST - Equations and Criteria with 100- correct answers 2025.

ECHO MASTER LIST -
Equations and Criteria
with 100% correct
answers 2025
= EDV - ESV - answer SV (Systolic Function)


= (SV/EDV) · 100% - answer EF%


= 0.785 · d² - answer CSA


= SV · HR - answer CO


CSA₁ · VTI₁ = CSA₂ · VTI₂ - answer Continuity Equation


∆P = 4(v₂² - v₁²) - answer Bernoullis Equation


∆P = 4(v₂²) - answer Simplified Bernoullis Equation


= VTI(LVOT) / VTI(AV) - answer DSI


> 55% - answer nl EF


= 25 - 45% - answer nl Fractional Shortening

, = 0.7 - 1.2 m/s - answer nl MV Doppler E-wave


< 0.7 m/s - answer nl RV inflow


= 1.8 - 2.4 cm - answer nl LVOT d


= 70 - 100 cc - answer nl SV of LVOT


< 2 m/s - answer nl Aortic v


> 2 cm² - answer nl AVA


= 2.4 - 4.2 L/min/m² - answer nl Cardiac Index


= CO/BSA - answer Cardiac Index


= 4 - 8 L/min - answer nl CO


= 4 - 6 cm² - answer nl MV area


= 1.8 - 2 cm² - answer nl VTI(LVOT)


= 7 - 13 cm² - answer nl MV inflow


= 1.0 - 2.0 (MV) - answer nl MV E/A ratio


≤ 1.3 m/s - answer nl MV peak v


< 5 mm - answer nl RV wall dimension