Further, they are rendered ineffective by organic matter in wounds like blood and exudate and are thus not useful in open wounds.

They detected dried blood cells and possibly fibrin in a state of degradation from maturity, suggesting an established blood clot of more than a few days' age.

You have all of this fluid coming into so not just cells that are going from our capillaries into our interstitial fluid, you'll actually have fluid going in and that fluid that's going in is called exudate.

However, pleural fluid testing is not perfect, and the final decision about whether a fluid is a transudate or an exudate is based not on chemical analysis of the fluid, but on accurate diagnosis of the disease that produces the fluid.

So, this is sold as cow, but what happens when you slaughter a cow at least in industrial factory farming they have all these little bits of steak left that they can't actually sell as steak, so what they do is they glue them all together with fibrin from pig blood into this really large sausage, then freeze the sausage, cut it in little slices and sell those as steak again.