what is microalbumin urine
A microalbumin test checks urine for the presence of a protein called albumin. Albumin is normally found in the blood and filtered by the kidneys. When the kidneys are working properly, albumin is not present in the urine.But when the kidneys are damaged, small amounts of albumin leak into the urine.esults. A microalbumin test checks urine for the presence of a protein called albumin. Microalbuminuria is most often caused by kidney damage from diabetes. The normal values listed hereâcalled a reference rangeâare just a guide.