Vascular problems, "third spacing" in my dad the doc says; what is it and how does it get treated?

"weeping" fluid: When you are dehydrated, you drink water, and that water eventually goes into your bloodstream to fix the dehydration. If you don't have enough protein in your blood, or if you have a serious infection, or if you just have too much fluid already, that fluid in your bloodstream actually starts leaking out into surrounding tissues. That weeping fluid is called third-spacing. Certain medicines help.