Urine Protein (Dipstick)
Does this test have other names?
Reagent strip urinalysis, urine albumin
What is this test?
This test checks the amount of protein in your urine. Your urine normally has a small amount of protein. Much of this protein is the type called albumin, but more than 200 other types of protein may be found in urine. When your body loses large amounts of protein in the urine, it can be because of dehydration, strenuous exercise, fever, or exposure to cold temperatures.
Extra protein in the urine can also be a sign of serious diseases. These include:
Congestive heart failure (CHF)
Why do I need this test?
You may need this test to see if you have a problem affecting your kidneys. Diabetes and high blood pressure are two common causes of kidney disease. Medicines, certain chemicals, and illicit drugs can also harm the kidneys. So can certain inherited diseases. Kidney disease doesn't always cause symptoms, but these are warning signs that your kidneys aren't working properly:
Swelling around the eye and in the hands and feet
Frequent urination, especially at night
What other tests might I have along with this test?
Your healthcare provider may also take your blood pressure. He or she may also:
Check for blood in your urine
Measure your glomerular filtration rate. This shows how well your kidneys are working.
Check your blood for blood sugar, protein, electrolytes, and cholesterol
Test for other diseases, including lupus and cancer
What do my test results mean?
Many things may affect your lab test results. These include the method each lab uses to do the test. Even if your test results are different from the normal value, you may not have a problem. To learn what the results mean for you, talk with your healthcare provider.
Healthy adults normally excrete less than 150 milligrams of protein over 24 hours. Higher amounts of protein in your urine may mean that you have a health problem. Your healthcare provider will use the results of this test, along with other test results, to diagnose your health problem or track its changes.
How is this test done?
This test requires a urine sample. Your healthcare provider may ask you to provide a single urine sample or collect your urine over a certain time period, such as 24 hours.
Does this test pose any risks?
This test poses no risks.
What might affect my test results?
If your urine is very alkaline, test results may falsely show protein in the urine. Certain bacteria in the urine can have this effect. Blood in the urine may also interfere with the results.
Certain medicines can also affect the results of this test.
Having a fever or exercising strenuously just before the test may also affect your result. Collecting too much urine or not enough urine may affect your result.
How do I get ready for this test?
Ask your healthcare provider if any medicines you're taking or health conditions you have may affect this test. Be sure your provider knows about all medicines, herbs, vitamins, and supplements you are taking. This includes medicines that don't need a prescription and any illicit drugs you may use.
Carefully follow your provider's directions for collecting a urine sample. For example, people taking a 24-hour urine test usually urinate without collecting it, note the time, and then collect their urine for the next 24 hours from that time.
March 22, 2017
Assessment of Urinary protein excretion and evaluation of isolated non-nephrotic proteinuria in adults. UpToDate., Basic Examination of Urine. McPherson RA, Ben-Ezra J. Henry’s Clinical Diagnosis and Management by Laboratory Methods. Chap. 28. 2012, 22nd ed., pp. 445-53., Urine Protein. Ferri FF. Ferri's Clinical Advisor. 2012, 1st ed., p. 1390.
Turley, Ray, BSN, MSN,Walton-Ziegler, Olivia, MS, PA-C