ex vivo blood analysis blood nitrite analysis 2013-02-27T12:28:33Z Any method to assess nitrite, the nitrogen oxoanion chemical formula NO2(-), in blood the fluid circulating through the heart, arteries, capillaries, and veins, carrying nutrients and oxygen to body cells, and removing waste products and carbon dioxide. Measurement of nitrite is used to estimate nitric oxide (NO) production in biological systems. JSmith MMO:0000375 blood nitritic oxide analysis measurement_method_ontology