Urine is a clear light yellowish fluid made up of the pigment urochrome.
Urine is composed of 95 percent water and 5% organic and inorganic components.
Organic compounds are made up of nitrogenous compounds such as urea, uric acid, creatinine, and hippuric acid as well as non-nitrogenous compounds such as vitamin C, oxalic acid, and phenolic chemicals.
Highest organic constituent of urine is urea which is 2% of the total urine.
Ammonia, mineral salts such as chlorides, sulfates, and phosphates of sodium, potassium, calcium, and magnesium are among the inorganic chemicals found in urine.
Over the course of 24 hours, a normal urea level in the urine is 12 to 20 grams.
Individual labs may have somewhat different reference ranges that differ depending on gender or age.
Urea levels in the urine that are low may indicate malnutrition.