24-hour urine protein is a test that measures the amount of protein released in urine over 24 hours.
The normal value of this test
The healthy glomerular filtration membrane can filter small molecular substances, so the amount of protein in urine is about 40-80mg every day for general population. However, when some certain diseases occur such as kidney disease and heart failure, extra protein will leak from the kidney, so the protein qualitative test shows positive and 24-hour urine protein can test the amount of protein in urine accurately.
What can we know from this test?
24-hour urine protein is one common test to detect kidney disease. If one person is suspected to have kidney disease, this tests can be used as a reliable indicator of kidney disease.
In clinic, protein qualitative test and 24-hour urine protein are usually taken for kidney disease diagnosis. If protein qualitative test indicates positive, the more + in the result of 24-hour urine protein, the worse patients' condition.
Regular urine test can help us find out kidney problem earlier, so we can have enough time to fight against it and improve our overall health.