Urine testing

Urine tests – a mirror of how your body works

A urine test is one of the simplest yet most informative procedures in laboratory diagnostics.
It allows many areas of how the body works – especially the kidneys, urinary tract and metabolism – to be checked quickly and painlessly.

Urine is the body’s “filter report”: it contains every substance the body removes from the blood and excretes.
That is why analysing urine gives an accurate picture of how the excretory organs are working and which metabolic processes are taking place in the body.

The test is important not only when an illness is suspected; it is also recommended for prevention, as general health screening, because it can show abnormalities even before symptoms appear.

What does the clinical laboratory check in a urine test?

In the laboratory, the physical, chemical and microscopic properties of the urine are assessed.
On this basis, the test can help detect kidney and urinary tract diseases, metabolic disorders, inflammation or internal organ abnormalities.

1. Physical properties

The colour, smell, clarity and specific gravity of urine say a lot about how well hydrated the body is and how well the kidneys concentrate urine.

• Very pale urine: may be a sign of high fluid intake or a problem with sugar metabolism.
• Darker colour: may point to dehydration, a liver problem or the presence of bile pigment.
• Changed smell or cloudiness: may point to inflammation or the presence of bacteria.

1. Chemical analysis

In the chemical analysis, the concentration of substances in the urine is measured with test strips or an automated method.
The main parameters tested:

• Protein: its presence may point to a kidney problem or inflammation.
• Sugar (glucose): may be a sign of diabetes or another carbohydrate metabolism disorder.
• Ketones: appear when fat breakdown increases (e.g. diabetes, fasting, dieting).
• Blood (haemoglobin): may point to a urinary tract infection, a stone or a kidney problem.
• Nitrite: indicates bacteria and supports a suspected urinary tract infection.
• pH and specific gravity: show the acid–base balance and the kidneys’ ability to concentrate urine.
• Urobilinogen and bilirubin: give information about liver function.

The chemical test therefore gives a complete picture of how the kidneys, liver and metabolism are working.

1. Microscopic examination

In the microscopic analysis of the sediment from centrifuged urine, the laboratory looks for cells, crystals and other elements, such as:

• red and white blood cells (signs of inflammation or bleeding),
• epithelial cells (which give information about the condition of the urinary tract),
• bacteria or fungi (if infection is suspected),
• crystals and casts (which may be signs of kidney stones or a metabolic disorder).

This detailed microscopic analysis helps refine the chemical results and also reveals abnormalities that cause no symptoms.

What is a urine test for?

A urine test helps the doctor:

• assess the state of the kidneys and urinary tract,
• recognise disorders of sugar and protein metabolism,
• detect infections early,
• confirm a suspected liver or bile duct disease,
• and in checking how well drug treatment is working.

The test is important not only for diagnosis but also for prevention, because many diseases can be detected in the urine before symptoms appear.

Sample collection and the correct technique

For an accurate result, collecting the sample correctly is very important.

General points:

• The most suitable sample for the test is the first midstream urine of the morning.
• The sample must be collected in a sterile container that can be closed.
• Before giving the sample, wash your hands thoroughly and clean the area around the urethra to avoid contamination.
• Do not let the first stream go into the cup, only the middle part.
• The sample should reach the laboratory within 1–2 hours at most.

Women should not have the test during a period, because blood can distort the result.

Evaluating the results

Urine test results are assessed jointly by the laboratory and your doctor.
The data on their own are not diagnoses but important signals about how the body is working.
The causes of any abnormalities must always be looked at in connection with the clinical symptoms and other laboratory tests.

Based on the result, the doctor may recommend further tests or treatment, so a urine test is often the first step towards an accurate diagnosis.

The role of urine tests in staying healthy

A regular urine test is a simple, quick and painless way to get a picture of how our internal organs are working.
It helps detect kidney, urinary tract, metabolic and liver problems in time, before they develop into more serious illness.

At Sabjanics Medical Center we carry out urine tests with high-precision, modern laboratory technology.
Our empathetic and experienced specialists make sure the test is discreet, comfortable and reliable –
because prevention is always easier than treatment.