What does serum urea mean?

Serum urea is the end product of protein metabolism. The normal value is 2.0-7.1mmol/L. The increase or decrease of serum urea should be paid attention to in time.

1. The increase of serum urea

indicates the organic damage of renal function, such as primary glomerulonephritis, pyelonephritis, interstitial nephritis and other diseases. For patients with chronic renal failure, the increase of serum urea is directly proportional to the severity of the disease. Clinically, it is often used to assist in the diagnosis of chronic renal failure. In addition, the increase of serum urea can also be seen after major surgery, hyperthyroidism, large-area burns, etc.

2. The decrease of serum urea is rarely seen clinically

, mainly related to liver parenchyma damage, liver cirrhosis, toxic hepatitis, liver atrophy, severe anemia, etc.