Dog Rocks Â® are a 100% natural, paramagnetic igneous rock mined from a quarry in Australia. They contain no chemicals and have been scientifically tested and proven safe for all pets.
In brief: Water. Free fluid is typically water. The lining of your abdominal contents are slippery (your bowel, the lining of your organs) and it's thus wet inside your abdomen. It's normal to have a little free fluid in one's pelvis, as that's where fluid tends to pool.
Serum is the liquid portion of the blood after it has been allowed to clot. It is free of clotting proteins but contains the clotting. metabolites that result from the clotting process. It is a cleaner sample typically free of cells and platelets because they are. trapped in the fibrin meshwork of the clot.