24-Hours Urine Protein:-Why is the 24-hour urine protein test given? A 24-hour urine protein test is given if you have symptoms of glomerulonephritis or nephrotic syndrome. Other types of kidney disease or other conditions that affect the kidneys are also sufficient reasons to order the test, including: uncontrolled diabetes. Total protein:- A total protein and A/G ratio test is often included as part of a comprehensive metabolic panel, a test that measures proteins and other substances in the blood. It may also be used to help diagnose kidney disease, liver disease, or nutritional problems.