Urine test: what a urinalysis checks and normal results in Dubai

A urine test, or urinalysis, looks at one small sample of urine in three ways: how it looks, what a chemical strip picks up, and what shows under a microscope. Together they say something about the kidneys and urinary tract, blood sugar and the liver. If you are having a urine test in Dubai or anywhere else in the UAE, this page explains what each part checks and how the results are read.

What a urine test includes

Clare's panel includes 21 urine results, all measured by the lab from the same sample, in three groups.

• How the sample looks. Colour, clarity and specific gravity, which is how concentrated the urine is.
• What the strip picks up. Chemical pads that change colour for urine pH, protein, glucose, ketones, blood (haemoglobin), bilirubin, urobilinogen, nitrite and leukocyte esterase.
• What the microscope shows. After the sample is spun so that particles settle, the lab counts and names white cells, red cells, epithelial cells, bacteria, yeast, casts, crystals, mucus and anything else on the slide.

Who usually asks for one

Doctors order a urine test in a routine check-up, for symptoms of a urinary infection, to look for blood in the urine, and to monitor diabetes or kidney disease. It is also a regular part of care in pregnancy.

How to prepare

• No fasting is needed for the urine test itself, though blood tests at the same visit may need it.
• Many labs prefer an early morning sample, which varies least with what you ate and drank during the day.
• Give a midstream, clean-catch sample: start passing urine into the toilet, then collect the middle part in the container.
• Avoid hard exercise for about a day before, as it can push protein, and sometimes blood, into the urine for a short time.
• If you have your period, say so. Laboratory guidance suggests collecting outside your period and the 2 to 3 days either side, unless your doctor asks otherwise.
• Mention medicines and supplements. Some change the colour of urine, and large doses of vitamin C can hide glucose and blood on the strip.
• The sample should reach the lab within about two hours, or be kept cold, because cells break down and bacteria multiply in urine left standing.

Reading the results

Ranges vary by laboratory, method, age and sex, so read each result against the range on your own report.

The strip markers, in brief

Urine pH shows how acidic the urine is and shifts with diet. Urine protein can be an early sign that the kidneys' filters are letting through what they should hold back. Urine glucose appears when blood sugar rises above what the kidneys can reabsorb. Urine ketones appear when the body burns fat for fuel. Urine blood (haemoglobin) detects blood below what the eye can see. Nitrite and leukocyte esterase, read with white cells under the microscope (urine WBC), are the signs of a urinary infection.

Usual results for the other markers

Colour, clarity and specific gravity

Fresh urine is normally straw yellow and clear. It darkens as it becomes more concentrated. Beetroot and blackberries can turn it red, B vitamins can make it bright yellow, and medicines such as rifampicin and nitrofurantoin change it too. Cloudiness can come with infection, but is often phosphate crystals settling out of alkaline urine. Red, pink or brown urine that food or medicine does not explain is worth showing a doctor.

Specific gravity tracks concentration. A value near 1.010 suggests ordinary hydration, above 1.020 suggests concentrated urine, usually from too little to drink, and below 1.003 suggests very dilute urine. Doctors read a persistently low value alongside blood sodium and kidney function.

Bilirubin and urobilinogen

Both come from the breakdown of old red cells. Gut bacteria turn the bilirubin in bile into urobilinogen, and a little of that reaches the urine, so a small amount is normal. Bilirubin itself does not normally reach the urine; when it does, it points towards the liver or bile ducts. High urobilinogen can follow faster red cell breakdown or liver disease, and low or absent urobilinogen can mean bile is not reaching the gut. The usual next step is the liver function test, including total bilirubin and direct bilirubin.

Red cells

The strip's blood pad cannot tell intact red cells from free haemoglobin or from myoglobin released by muscle, so the microscope counts them. The American Urological Association treats 3 or more red cells per high-power field as microscopic haematuria, and advises against diagnosing it from a strip alone. Hard exercise, a period and infection can all add red cells for a while, so a raised count is usually rechecked before anything else is done.

Epithelial cells, bacteria and yeast

Squamous cells line the end of the urethra and the skin around it. More than about 5 per high-power field, especially with bacteria and no white cells, usually means the sample picked up cells and germs on the way out. Transitional cells from the bladder are normal; renal tubular cells, from inside the kidney, are the type a doctor pays attention to. Yeast in the urine of someone without symptoms is, in the words of the Infectious Diseases Society of America, almost always colonisation. It is seen more often in older people, women, people with diabetes, after antibiotics and with urinary catheters.

Casts and crystals

Casts are tiny cylinders of protein that form in the kidney's tubules and wash out whole. A few hyaline casts, made of protein alone, are normal and more common after dehydration or hard exercise. Casts carrying cells point to the kidney itself: red cell casts to bleeding within it, white cell casts to infection or inflammation, and granular or waxy casts to kidney disease.

Crystals are minerals that have come out of solution. Calcium oxalate and some phosphate crystals appear in healthy people, and crystals form in any sample that cools, which is why labs look at fresh urine. Cystine crystals are the exception, being linked to an inherited condition called cystinuria. Crystals matter most alongside pain, red cells or a history of kidney stones.

Mucus and other findings

Mucus threads come from the lining of the urinary and genital tracts and are read with the rest of the slide. The lab may also note other things it sees, such as sperm, fat droplets or fibres from clothing.

How the markers are read together

Urine results mean more as a pattern. None of these combinations is a diagnosis on its own.

• Infection. Nitrite and leukocyte esterase on the strip, with white cells and bacteria under the microscope, in someone with urinary symptoms. A culture confirms it.
• Collection. Bacteria and many squamous cells but no white cells usually reflect how the sample was collected.
• Kidney. Protein with red cells, especially misshapen red cells or red cell casts, points towards the kidney's filters. A doctor typically checks creatinine, eGFR and a urine albumin-to-creatinine ratio.
• Strip blood without red cells. This suggests free haemoglobin or muscle myoglobin, for example after very hard exercise.
• Concentration. High specific gravity, dark urine, a trace of protein and a few hyaline casts often reflect little fluid or recent exercise.
• Metabolism. Glucose with ketones most often goes with diabetes that is out of control, and is read with HbA1c and fasting glucose. Ketones alone can appear with fasting or low-carbohydrate eating.
• Bile. Bilirubin with low urobilinogen fits bile not reaching the gut; high urobilinogen without bilirubin fits faster red cell breakdown.

Why it matters in the UAE

• Diabetes is common. The International Diabetes Federation estimates that 20.7% of UAE adults aged 20 to 79 had diabetes in 2024 (age-standardised), and that about 64% of them were undiagnosed. Urine glucose is a late signal, so a negative strip does not rule diabetes out. Urine protein is one of the ways diabetes shows its effect on the kidneys: in a 2020 study of 207 UAE nationals with type 2 diabetes at a hospital clinic, 44% had moderately increased albumin in a single sample.
• Heat and fasting concentrate urine. During Ramadan, urine becomes more concentrated in the afternoon as the body conserves water. The IDF and DAR Ramadan guidelines say this does not usually amount to harmful dehydration, but that hot climates and heavy physical work make dehydration more relevant. A concentrated sample shifts colour, specific gravity and sometimes protein.
• Kidney stones are common in the region. A 2018 review of stone disease in Asia describes high rates in West Asia, linked to heat and a semi-arid climate, and lists the UAE among countries where stone rates have been rising.

Related tests

The urine test is usually read alongside the kidney function test, which includes creatinine and eGFR, and the HbA1c and diabetes test, which includes HbA1c and fasting glucose. When bilirubin or urobilinogen are out of range, the liver function test is the natural next look. For how a broader panel fits together, see our guide to a comprehensive blood test in Dubai.

Why the results mean more over time

A single urine sample is a snapshot, and many of its findings are short-lived, like a trace of protein after exercise or red cells during a period. That is why guidelines ask for an abnormal result to be repeated before it is acted on, and why a change between tests says more than any one reading. Protein that persists for three months or more is one of the markers guidelines use to define chronic kidney disease. People with diabetes or high blood pressure usually have urine albumin and kidney function checked regularly, at a frequency agreed with their doctor.

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