"Ammonia concentrations" refers to the amount or level of ammonia present in a given substance or environment. It measures the concentration or density of ammonia molecules in a particular area. Full definition
A potential reason for the link between high protein diets and aggressive behavior is due to ammonia concentrations in the blood. (topdogtips.com)
Fresh whole blood, fresh packed red blood cells or fresh frozen plasma typically are used, because stored blood products contain high ammonia concentrations which are undesirable in most cases of liver disease. (petwave.com)
Blood ammonia concentration increases during endurance exercise and has been proposed as a cause for both peripheral and central fatigue. (tangoherbs.com)