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Doctor insights on: Why Could Protein In Urine Be A Sign Of Kidney Damage

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Why could protein in urine be a sign of kidney damage?

Why could protein in urine be a sign of kidney damage?

Damage to kidney: Generally protein is filtered out from the urine by the kidney and when there is a problem with the filter "kidney" it cannot maintain the function and nephrologists , kidney doctors have to investigate the cause , which may be serious. ...Read more

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Urine (Definition)

Urine is the product of the kidneys, which is produced to eliminate the waste products of metabolism, manage body fluid balance, &maintain acid-base balance. The blood is first filtered by the kidneys, and the composition of the resulting fluid is then altered depending on the body's needs. It is composed of mostly water, and breakdown products from blood cells impart ...Read more


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How is it that protein in urine may be a sign of kidney damage?

How is it that protein in urine may be a sign of kidney damage?

Nephron damage: Think of the kidney as a filter. This filter is intended to wash out the impurities in your blood, but designed to retain the proper nutrients, blood cells, proteins, etc your body requires. When there is damage to these filtration units (nephrons) in the kidneys, the filtration becomes less efficient and proteins are commonly lost into the urine. ...Read more

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How is it that protein in the urine may be a sign of kidney damage?

How is it that protein in the urine may be a sign of kidney damage?

Altered filtration.: The kidney normal has a complex filtering & absorption system that retains almost all of the protein in the blood to conserve it. When the cells that form the filter develop problems through inflammation or disease, they allow protein to the released in the urine detectable on urinalysis. An evaluation to assess the degree and to find the cause is important to limit any kidney damage. ...Read more

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If dipstick urine test shows 15 mg of protein nearly evertime I test, it is a sign of kidney damage or disease?

If dipstick urine test shows 15 mg of protein nearly evertime I test, it is a sign of kidney damage or disease?

What is difference: At 36 spilling ( loosing ) protein in the urine is a serious issue , if you are diabetic control your blood sugar levels ,other systemic diseases . See your doctor , may refer you to a neurologist ( kidney specialist ) beside medication advise diet , exercise etc, ...Read more

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What is the norm in early signs of kidney disease or damage, is it creatnine in blood or is it protein in urine ? Which one usually happens first ?

What is the norm in early signs of kidney disease or damage, is it creatnine in blood or is it protein in urine ? Which one usually happens first ?

Either: Both urine protein and serum creatinine are important. More important are the common causes of kidney disease, e.e., high blood pressure, and diabetes. See this site for more info. http://www.nlm.nih.gov/medlineplus/magazine/issues/winter08/articles/winter08pg9-10.html ...Read more

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Does protein in urine always mean kidney dysfunction?

Does protein in urine always mean kidney dysfunction?

No: It is possible to have isolated proteinuria in which case there is protein in the urine (no greater than 3g/24h) but no other abnormalities in urine or blood tests, as well as no symptoms associated with kidney problems and a normal physical exam. It is a diagnosis of exclusion. ...Read more

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I ask alot of questions involving my kidneys i apologize. How foamy does the urine have to get to indicate protein in urine?

I ask alot of questions involving my kidneys i apologize.  How foamy does the urine have to get to indicate protein in urine?

Not a great sign: Foamy urine is highly variable in ability to predict protein in the urine. There are quick and easy tests available, starting with a dipstick at your doctor's office ...Read more

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What are some causes of protein in urine and kidney pain?

What are some causes of protein in urine and kidney pain?

Protein in Urine: Normaly urine does not have any protein most of the time , but upto 150mgm of protein can be excreted by a normal person, that may show as trace of protein in urine test.It can be 1+or30mgm/dl, 2+or100mgm/dl, 3+or300mgm/dl, or4+or 2000mgm/dl if you have persistent protein in urine more than1+, you should see a specialist.Common causes are dehydration, nephrotic syndrome, stress, nephritis, sarcoidosis, drugs. ...Read more

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If I have 30mg/dl of protein in my urine during a uti, is this normal or do I have kidney damage from this? Can i treat this without abx?

If I have 30mg/dl of protein in my urine during a uti, is this normal or do I have kidney damage from this? Can i treat this without abx?

Probably not: First treat the infection if present and then check the protein. Normally it will be high during an infection because of the red and white blood cells in the urine. Probably no kidney damage. Significant protein in the urine is over 150mg/day. ...Read more

Kidney (Definition)

The kidneys are paired organs that lie on either side of the vertebral column. Part of their critical functions include the excretion of urine and removal of nitrogenous wastes products from the blood. They regulate acid-base, electrolyte, fluid balance and blood pressure. Through hormonal signals, the kidneys control the ...Read more


Dr. Sewa Legha
98 doctors shared insights

Protein In Urine (Definition)

Protein is an expensive commodity for the body. The kidneys are entrusted to return protein back to the body during filtering, and not lose it to the urine. Losses > 150mg/day are indicative of a problem with the filtration mechanism of the kidney. A nephrologist should be consulted ...Read more