Hemodynamic volume assessment by bedside ultrasound. IVC heart lung is three organs that you should interpret add on to clinical context. You can download our application resus ultrasound on APP storre(free) or visit https://www.facebook.com/resusultrasound/

1. Distend > 18%
at inspiration in
mechanical ventilation
(Distesibility index)
Collapse > 50%
Inspiration in spontaneous breathing
(collabsibility index)
Rigid or
collapse < 50%
at inspiration phase
Volume responsive (Low CVP) Volume Non responsive (High CVP)
Small diameter at a glance Large, non collapse with
dilate hepatic vein at a glance
50%
18%
Decrease end systolic
LV area (Kissing LV)
A line
Reflect Air > Fluid
both lungs
B line
Reflect Air > Fluid
both lungs
Normal or increase end
systolic LV area
Heart
Distend < 18%
Distensibility index
d(IVC)= IVCmax – IVCmin / IVCmin
Collapsibility index
d(IVC)= IVCmax – IVCmin / IVCmax
IVC
(Inferior vena cava)
Lung
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