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Urine Test

When your kidneys are damaged, they may let protein leak into your urine.  This can be one of the earliest signs of kidney disease.  To check for protein in your urine (called proteinuria), your doctor may suggest a urine test.  There are two types of urine tests your doctor may use.

Dipstick Urine Test
Urine Albumin-to-Creatinine Ratio

Dipstick Urine Test

A dipstick urine test tells your doctor if there is protein in your urine.  Your doctor may test your urine in the office or ask you to bring a sample from home.  If your first dipstick urine test shows protein in your urine, ask your doctor when you should be tested again.  Also ask if a urine albumin-to-creatinine (UACR) test is right for you.

Urine Albumin-to-Creatinine Ratio

A UACR test tells your doctor how much albumin is in your urine.  Your doctor will test your urine albumin (a type of protein) and creatinine (a kind of waste).  Your doctor will compare these results to figure out your UACR.  A normal UACR is less than 30mg/g¹.  If your UACR is more than 30 mg/g, ask your doctor when you should be tested again.  Also ask your doctor if an estimated glomerular filtration rate (eGFR) test is right for you.

1National Kidney Disease Education Program. (June 2010).  Quick Reference on UACR and GFR.  Retrieved from http://www.nkdep.nih.gov/resources/uacr_gfr_quickreference.htm.

 

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