About this test
Urea is a waste product formed when the body breaks down protein. The kidneys remove it from the blood. A raised level can be linked with kidney problems, but also with dehydration or a high-protein diet, so it is read along with creatinine.
Why it is done
- To check kidney function along with creatinine.
- To assess hydration in some illnesses.
- To monitor people with kidney or heart conditions.
Preparation
No special preparation is usually needed.
This information is general and is not medical advice. Please speak to your doctor about your results and treatment.