24-hour urine protein

A 24-hour urine sample is needed: On day 1, urinate into the toilet when you get up in the morning. Afterward, collect all urine in a special container for the next 24 hours. On day 2, urinate into the container when you get up in the morning. Be sure to do this exactly 24 hours after you started the collection. Cap…

Your provider will tell you, if needed, to stop taking any medicines that may interfere with the test results. A number of medicines can change the test results. Make sure your provider knows about all medicines, herbs, vitamins, and supplements you are taking. The following may also affect test results: A lack of…

The test involves only normal urination, and there is no discomfort.

Your provider may order this test if blood, urine, or imaging tests find signs of reduced kidney function. To avoid a 24-hour urine collection, your provider may be able to order a test that is done on just one urine sample (protein-to-creatinine ratio).

The normal value is less than 100 milligrams per day or less than 10 milligrams per deciliter of urine. The examples above are common measurements for results of these tests. Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your…

Abnormal results may be due to: A group of diseases in which a protein called amyloid builds up in the organs and tissues ( amyloidosis ) Bladder tumor Heart failure High blood pressure during pregnancy ( preeclampsia ) Kidney disease caused by diabetes, high blood pressure, autoimmune disorders, a blockage in the…

The test involves normal urination. There are no risks.

Castle EP, Wolter CE, Woods ME. Evaluation of the urologic patient: testing and imaging. In: Partin AW, Dmochowski RR, Kavoussi LR, Peters CA, eds. Campbell-Walsh-Wein Urology . 12th ed. Philadelphia, PA: Elsevier; 2021:chap 2. Hiremath S, Buchkremer F, Lerma EV. Urinalysis. In: Lerma EV, Sparks MA, Topf JM, eds.…