Esr dating wikipedia
After 60 minutes, measurements are taken of the distance the red cells traveled to settle at the bottom of the tube.Two methods, the Westergren and the Wintrobe, are used by laboratories; each method produces slightly different results. Normally red cells don't settle far toward the bottom of the tube.Distorted cells, such as with sickle cell disease, do not stack, and consequently do not settle far, even in the presence of an ESR-associated disease.Diseases that cause the body to make less protein or extra red blood cells also decrease the ESR.) takes place in the red bone marrow in the adult, and in the liver, spleen, and bone marrow of the fetus.Aged red cells are ingested by macrophages in the spleen and liver.
The rate is an indication of inflammation and increases in many diseases.
It requires an ample supply of dietary elements such as iron, cobalt, copper, amino acids, and certain vitamins.
Called also red cell or corpuscle and red blood cell or corpuscle. The functions of erythrocytes include transportation of oxygen and carbon dioxide.
A specific amount of diluted, unclotted blood is placed in a special narrow tube and left undisturbed for exactly one hour.
The red cells settle towards the bottom of the tube, and the pale yellow liquid (plasma) rises to the top.