third spacing

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third spac·ing

loss of extracellular fluid from the vascular to other body compartments.
A popular verb for haemorrhage or other accumulation of fluids into the so-called 3rd space or physiologic compartment, the interstitial space between the skin and fascia that isn’t normally perfused with fluids
Examples Skin in severe burns, peritoneum in pancreatitis

third spacing

Medtalk A popular verb for hemorrhage or other accumulation of fluids into the so-called 3rd space or physiologic compartment, the interstitial space between the skin and fascia

third spac·ing

(thĭrd spās'ing)
Shift of fluid from the intravascular space to a nonfunctional space (e.g., abdomen or thorax).