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Urine Protein Test

by Frank on March 6, 2017

A urine protein test is a diagnostic procedure to detect the content of protein in a person’s urine like Urobilinogen in urine¬†cloudy or milky urine. The test is primarily used in the diagnosis of kidney damage and kidney diseases.

It is also called the 24-Hour Urine Protein test or the Urine Protein to Creatinine Ratio (UPCR) test. When referring to specific protein detection, it is called a Proteinuria test or a Microalbuminuria test. Urine samples can be random or collected over a period of time (every 4 hours or for 24 hours).

Detecting traces of proteins in urine excretion is a sign that something is wrong with the kidney or the liver, the organs that filter waste products and flush them out of the body. Proteins are building blocks of the body and ideally absorbed 100%. As such, when a protein passes out of the body through urine, it is a sign of a kidney having problems by not being able to hold back the proteins.

Urine protein tests will determine albuminuria, the initial stage of kidney failure detected by the presence of albumin protein in the urine which are small molecules and the first to pass out from the body into the urine. Proteinuria is a state of progressive albuminuria, resulting to permanent kidney damage and cardiovascular diseases.

This urine test will only tell that a protein is present in the urine. However, it cannot tell what specific type of protein is present, the total amount and the causes of its presence. To know this, the doctor can order a Serum and Urine Protein Electrophoresis exam or a Comprehensive Metabolic Panel (CMP) exam. These more comprehensive related tests will evaluate the state of the kidney and liver function of a person.

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