Urea is the main way your body gets rid of spare protein. Its level reflects your kidneys, but also how much water you drink and how much protein you eat.
Serum Urea. A waste product made in the liver when protein is broken down and cleared by the kidneys, so it reflects kidney function, hydration and protein intake together.
Creatinine on the same draw. Read alongside urea, creatinine helps show whether a raised urea is more likely about hydration and diet or about kidney filtering.
When you eat protein, the liver turns the spare nitrogen into urea, and the kidneys clear it in urine. If the kidneys filter less well, urea builds up. But urea moves with much more than the kidneys. Dehydration concentrates it, a high-protein diet raises it, and a low-protein diet lowers it. That makes it a useful marker, but rarely a decisive one on its own.
In the UAE, mild dehydration is common, especially in the summer, after outdoor work or after training in the heat. A raised urea with a normal creatinine often points to not drinking enough or a high protein intake. A raised urea with a raised creatinine is more likely to reflect kidney filtering and is checked more carefully. Reading the two together is why both are measured on the same screen.
UAE labs usually report urea in millimoles per litre (mmol/L), while some report blood urea nitrogen (BUN) in mg/dL. The two are not the same number, so check which one your report shows. Reference ranges vary by lab.
A raised urea is often linked with dehydration, a high-protein diet or recent hard exercise. Some medicines and bleeding in the gut can also raise it. If creatinine is raised too, or eGFR is lower, it is worth following up with your own doctor.
Low urea is often linked with a low-protein diet, drinking a lot of fluid or pregnancy. Less often it can reflect reduced liver function, which the liver markers on the same screen help check.
Reference ranges differ between labs, and a single result is a snapshot. Your consultant reads every value against your history and the rest of the screen, not in isolation.
This test is part of Baseline’s full blood screen: 122 parameters across ten systems from one draw, for AED 850, with results in 48 hours. It is not sold as a single test, because the result means more next to everything else.
Ranges are the lab’s own. Your consultant goes through what they mean with you.
Your results arrive in the Baseline app, every marker against the lab’s own range, checked by your consultant before you see them. The values above are an example.
This page is general information, not a diagnosis. If you feel unwell, or your symptoms are new or getting worse, speak to a doctor.
Reading is not a diagnosis. A consultation goes through your history with you and tells you plainly whether a program fits, including when it does not. AED 350, credited in full against your first order.