Proteinuria describes a condition in which urine contains an abnormal amount of protein. The two proteins that are most likely to appear in urine are albumin and globulin

Loss of proteins in the urine.

the presence of protein in urine

Presence of urinary protein in concentrations greater than 0.3 g in a 24-hour urine collection or in concentrations greater than 1 g/l in a random urine collection on two or more occasions at least 6 hours apart; specimens must be clean, voided midstream, or obtained by catheterization.

The presence of an excess of serum proteins in the urine

Protein in the urine.