Pt still hypotensive after fluids? Sara Crager, MD (@teachicu) from ResusX:ReUnion talks nex #shorts

Added: 2026-05-05

[00:00:00]Let's say we have a water and that water balloon currently has 200 milliliters of water in it. But to fill it up completely, we need to put 500 milliliters in it. So we put some more fluid in it 400 when we take that 200 ml and make it 400 ml, but you need 500 to fully distend your water balloon. Have we changed the pressure in that water balloon?

[00:00:20]No, we have not. We've added volume and done nothing whatsoever to the pressure.

[00:00:24]It's only at the point that we now fully distend the water balloon by giving now 600 cc's of fluid and now after this point, now when we increase the volume, we increase the pressure.