blood protein measurement blood cytokine measurement true 2013-11-26T11:05:41Z JSmith Any measurement related to a morphological or physiological parameter, such as the amount or composition, of cytokines in blood, the fluid that circulates through the heart, arteries, capillaries and veins carrying nutrients and oxygen to the body tissues and metabolites away from them. A cytokine is a type of nonantibody protein released by a cell population on contact with specific antigen, which acts as an intercellular mediator, as in the generation of an immune response. https://www.ncbi.nlm.nih.gov/pubmed/28288363