Protein, Total, Urine
This test measures total protein in a urine sample. Protein in urine (proteinuria) can indicate kidney damage, and persistent findings warrant further investigation.
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Urine
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What the Protein, Total, Urine test tells you
This test measures the total protein present in a single sample of urine. It is a measure of what is escaping from the body, not of what is circulating in it, and that distinction is the whole point: the total protein reported on a blood test is a different measurement answering a different question. The kidney's filters and tubules together return nearly all protein to the blood, so urine normally contains only traces.
When protein appears in larger quantities, something in that process has changed. Either the filters are leaking, or the tubules are not reclaiming what they should, or an unusual protein is being produced faster than the kidney can handle. Unlike an albumin test, which looks at one specific protein, this measurement captures everything: albumin, the smaller proteins that signal tubular problems, and the abnormal light-chain proteins seen in some bone-marrow disorders. That breadth is its strength as a general screen and also its limitation, because it says protein is present without saying which one.
A single positive result is rarely the end of the story. Protein can appear in urine for entirely benign reasons: a fever, a urinary infection, hard exercise, dehydration, or in some young people simply from being upright for much of the day. What matters clinically is protein that persists on repeat testing. Interpretation usually continues with a creatinine measurement on the same sample so the finding can be expressed as a ratio, and often with albumin testing or protein separation, alongside blood tests of kidney function and blood pressure.
Screens for kidney disease, monitors known renal conditions, and helps differentiate between glomerular and tubular proteinuria.
- Broad protein screen
It detects protein of any type rather than albumin alone, which makes it a useful general check on how well the kidneys are retaining protein.
- Follows up a dipstick
A positive dipstick is a rough signal, and this gives a measured quantity to work from.
- Feeds the protein ratio
Combined with creatinine on the same sample, it produces the ratio used to estimate a full day's loss.
- Monitors known kidney disease
Repeat measurements show whether protein loss is stable, improving or increasing.
Reasons your doctor may request the Protein, Total, Urine test
Your doctor may order this test for any of the reasons below. Some are routine checks, others follow specific symptoms or an earlier result.
Measuring protein found on a dipstick
- A routine dipstick has shown protein and your doctor wants a measured value.
- A bone-marrow disorder producing abnormal proteins is suspected.
Swelling & frothy urine
- Swelling, persistently frothy urine or unexplained fatigue is being investigated.
Kidney disease, diabetes & medication
- You are being monitored for an established kidney condition.
- Diabetes or high blood pressure is present and kidney involvement is being assessed.
- Kidney function needs checking before or after a medication known to affect it.
A result in the Normal band, 0 to 14 mg/dL, reflects the traces of protein urine normally contains and carries no meaning beyond that. A High result, 15 to 500 mg/dL, means protein is present in more than trace amounts, which can come from the kidney's filtering units, from a tubular disorder, from diabetes or long-standing high blood pressure affecting the kidney, or from an abnormal protein produced in the bone marrow. How dilute the sample was changes the number: a very concentrated specimen after limited fluid intake raises it on its own, which is why urine protein is normally reported next to creatinine as a ratio. Fever, a urinary tract infection, strenuous exercise and simply being upright all produce temporary positives, so what matters is whether protein persists on repeat testing. Your doctor reads the result with your kidney function, your symptoms and your history.
Medically reviewed by Dr Nirupama Sabhapathy
Ranges are a guide: your physician interprets your result alongside your symptoms and history.
What a higher result can point to
- Disease of the kidney's filtering units, allowing protein through.
- Tubular disorders in which small proteins are no longer reabsorbed.
- Diabetes or long-standing high blood pressure affecting the kidney.
- Fever, urinary tract infection or strenuous exercise around the time of sampling.
- Abnormal protein production in a bone-marrow disorder.
- A very concentrated sample after limited fluid intake.
These are possibilities, not diagnoses. A single value outside the reference range is interpreted alongside your symptoms, history and other tests: your doctor decides what it means for you.
What this test cannot tell you
- The result depends on how concentrated the sample was, which is why it is normally reported alongside creatinine as a ratio.
- It shows that protein is present in the urine but not which protein or where it comes from.
- Temporary causes such as fever, infection, exercise and upright posture are common and must be excluded by repeating the test.
- A low result means only that no significant protein was found in that sample and carries no meaning of its own.
Collecting your sample safely
- No needle is involved: you pass urine into a sterile container, so there is no physical risk.
- Wash your hands before and after, and don't touch the inside of the container or lid, so the sample stays clean.
- Close the lid firmly and keep the sample cool until it is collected, since a sample left warm can give a misleading result.
- 1Urine normally contains only traces of protein, so a clear positive deserves follow-up.
- 2This is about protein leaving the body through the kidneys, not the protein level in blood.
- 3The test captures all proteins, unlike an albumin-specific measurement.
- 4Results are far more useful when paired with creatinine and expressed as a ratio.
- 5Persistent protein is what matters, since a single positive often reflects a temporary cause.
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Frequently Asked Questions
Everything you need to know about the Protein, Total, Urine test. Can't find what you're looking for?
Talk to our team→Our laboratory reports 0 to 14 mg/dL as normal, reflecting the traces of protein urine normally contains. A result of 15 to 500 mg/dL is reported as high, meaning more than trace amounts are present. Because a concentrated sample raises the figure on its own, urine protein is normally read next to creatinine as a ratio.
Temporary causes are common: fever, a urinary infection, strenuous exercise, standing upright through the day, or a very concentrated sample. Persistent protein points towards the kidney, such as disease of the filtering units, a tubular disorder, or diabetes or long-standing high blood pressure affecting the kidney. Less often it comes from an abnormal protein produced in a bone-marrow disorder.
Some people pass a little protein simply from being upright during the day, which can make a later sample read high for harmless reasons. The first urine of the morning, collected midstream, avoids that effect and is more consistent from one test to the next. If a daytime sample is positive but a morning one is not, your doctor will take that into account.
It divides the protein result by the creatinine in the same sample. Creatinine passes into urine at a fairly steady rate, so the ratio corrects for how dilute or concentrated the urine was. That makes results from different days comparable and far more useful than the protein figure alone, which is why it is the usual way urine protein is reported and followed.
The first step is usually to repeat the test, because a single positive often reflects a temporary cause. If protein persists, your doctor will check kidney function in the blood, blood pressure and glucose, and may arrange tests to identify which protein is being lost and where it comes from, since this test shows only that protein is present.
Yes, and it is common. Early protein loss produces no symptoms at all, and there are also temporary causes. This is why the finding is measured properly and then repeated rather than acted on straight away.
Albumin is one specific protein and is measured at much smaller amounts, which makes it better for early detection in diabetes. Total protein covers all proteins and is used more broadly once loss is established.
Persistently foamy urine can accompany substantial protein loss, but foam alone is not reliable evidence of it. It is a reason to test rather than a result in itself.
No. Extra water dilutes the urine and can mask protein that is genuinely there. Drink as you normally would, and let the creatinine measurement handle the correction.
No, fasting is not needed. Give a first-morning, clean midstream sample and deliver it promptly, and postpone the test if you have a fever or urinary infection or are menstruating. Mention anti-inflammatory painkillers and any recent scan that used contrast dye.
The urine protein test is AED 35, including a physician-reviewed report, with results usually within 24 hours. Home collection anywhere in Dubai is free when your order reaches AED 300 or includes a package; below that, a AED 100 home collection fee applies (AED 50 for a lab walk-in).