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Urea

Urea is a waste product formed when the body breaks down amino acids and proteins from the food we ingest.

Brief about urea

  • Healthy kidneys efficiently remove urea from the body.
  • By analyzing P-Urea, one can get an idea of kidney function.
  • Men have slightly higher urea concentrations in the blood than women.

What is urea?

Urea is a waste product formed when the body breaks down amino acids and proteins after we have eaten. The body cannot use urea, so it must be removed from the body. Most of it is excreted through the kidneys in the urine, and a small portion is excreted through the skin and the digestive tract.

By analyzing P-Urea, one can get an idea of kidney function. Normally, there are small amounts of urea left in the bloodstream. Higher amounts of urea in the bloodstream may indicate impaired kidney function.

What does a high value mean?

A high value may be seen in conditions such as:

What does a low value mean?

A low value may be seen in conditions such as:

What are the reference values for Urea?

Women 18–50 years old: 2.6–6.4 mmol/L

Women > 50 years old: 3.1–7.9 mmol/L

Men 18–50 years old: 3.2–8.1 mmol/L

Men > 50 years old: 3.5–8.2 mmol/L

Reference values may vary depending on where the analysis is performed and which analysis method is used.

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