β2 microglobulin normal value

β2 microglobulin is also divided into urine β2 microglobulin and blood β2 microglobulin urine. Urine β2 microglobulin easily passes through the normal glomerular filtration membrane, but almost all of it is reabsorbed and metabolized by the proximal convoluted tubules. The normal reference value is 0.016- 0.518 mg/L. The molecular weight of blood β2 microglobulin is 11800, and the normal reference value is 0.8- 2.4 mg/L. So what is the specific normal value? The reagents and test methods used by each unit and hospital are different, and the normal value or reference value will fluctuate slightly.