Both urinary protein and urinary microalbumin are suggestive of renal disease, and there is no saying which one is more meaningful. At the same time, abnormal urine protein and urine microalbumin are also seen in other conditions, such as physiological factors such as large amount of high-protein diet, fever, etc., and pathologic factors such as urinary tract infections, urinary tract stones and so on.
Urine protein usually refers to 24-hour urine protein, its normal range is less than or equal to 0.15g, abnormal urine protein is seen in a variety of nephritis, nephropathy, as well as hypertension, glomerulosclerosis and other diseases, so there is a certain reference significance of renal disease. But also seen in renal tuberculosis, kidney stones, urinary tract infections, cold, fever, intense exercise, pregnancy will also appear positive urine protein.
Urine micro-protein normal reference value: 0~30mg/L, urine micro-protein reflects early kidney disease, such as diabetic nephropathy, hypertensive nephropathy in the early stage, so there is a certain reference value of kidney disease. However, urinary tract infection, urinary stones, large amount of high protein diet will also appear urine micro-protein abnormality.
The reference value of urine protein and urine microalbumin varies slightly in different laboratories, and the specific reference value is based on the local laboratory.
It is recommended that patients with abnormal urinary protein or urinary microalbumin, regular hospitals, standardized treatment under the guidance of physicians.