Finding the right tests…
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Finding the right tests…
Clinical Pathology
Urine routine and microscopy looks at a single urine sample in three separate ways: how it looks to the eye, what a chemical strip detects in it, and what shows up under a microscope. The visual check covers colour and clarity, which can shift with infection, blood, or simply how concentrated the sample is. The chemical strip screens for substances that shouldn't normally be in urine at all, such as glucose or protein, or that shouldn't be there in any real amount, such as blood. The microscopic portion goes a level deeper, looking directly at cells, crystals, and casts, fragments that form inside the kidney's own filtering tubes, which chemical strips can't detect on their own. Because the kidneys, bladder, and even the liver all leave traces in urine, this one sample can point toward problems in any of them without needing three separate tests.
The chemical portion checks for glucose, protein, blood, ketones, bilirubin, and pH, plus a reading called specific gravity, which shows how concentrated the sample is compared with plain water. The microscopic portion counts red and white blood cells, and looks for bacteria, crystals, and casts, cell fragments shed from inside the kidney's tiny filtering tubes, whose shape can hint at what kind of kidney process produced them. Colour and clarity are recorded too, since certain infections and conditions change how urine looks before any chemical or microscopic finding shows up.
A urine sample carries information a blood test cannot easily reach, since it reflects what's actually passing through the kidneys and bladder rather than what's circulating in blood generally. White blood cells, bacteria, and nitrites appearing together are a strong, fast signal of a urinary tract infection, often visible on this test before symptoms have become severe enough to need urgent attention.
One figure on the report that's easy to skim past is specific gravity, which compares how concentrated your urine is against plain water. It behaves more like a hydration check than a disease marker on its own: very concentrated urine usually just means you need more fluids, while unusually dilute urine, especially alongside other abnormal findings, can be a clue toward certain kidney or hormonal conditions.
A chemical strip can flag that protein or blood is present, but it can't say what's producing it. The microscopic exam adds that detail, looking directly at red and white blood cells, and at casts, which are cell fragments that form inside the kidney's own filtering tubes and pass into urine. Different cast types point toward different kidney processes, which is why the microscopic portion is read alongside, not instead of, the chemical results.
Because germs from the skin can easily contaminate a sample and produce a false alarm for infection that isn't actually there, most labs ask for a clean-catch collection, wiping first, then collecting midstream into a sterile container. No blood draw is involved in the test itself, though it's worth confirming collection instructions directly with the centre, since a contaminated sample is one of the more common, avoidable reasons a result comes back looking abnormal.
Most labs ask for a clean-catch collection, wiping first and then collecting midstream into a sterile container, which helps stop germs from the skin from contaminating the sample.
It shows how concentrated your urine is compared with plain water. On its own it's more a hydration marker than a disease sign, though unusual results alongside other findings can be worth a closer look.
Yes. White blood cells, bacteria, and nitrites appearing together in the sample are a strong early signal of a UTI, often visible before symptoms become severe.
It often points toward the kidneys, though causes range from something temporary and harmless to a condition needing follow-up. Your doctor interprets it alongside your other results and symptoms.
This page is general information about the test, not medical advice. Your own report's reference ranges apply — please discuss your results with your doctor.
They're tiny cell fragments that form inside the kidney's filtering tubes and pass into urine. Their presence and type can hint at what kind of kidney process, if any, is happening.
This test doesn't depend heavily on recent food intake the way many blood tests do, but it's worth confirming with your doctor or the centre, especially if other tests are ordered on the same visit.
Yes, some foods and medicines can change urine colour on their own without indicating any disease, which is why colour is read alongside the chemical and microscopic findings, not by itself.
It's a routine part of pregnancy checkups, since it can help catch a urinary infection or an early kidney-related change that might not otherwise cause obvious symptoms.
It's one of the more common, avoidable reasons a result looks abnormal, which is why clean-catch collection instructions matter as much as the lab work itself.