There is a component called urea, which is the result of the metabolism of the proteins that are made in the liver in human blood. During digestion, proteins are separated into amino acids containing nitrogen, which is released as ammonium ion to form urea that is eliminated in the urine. If the kidney doesn't work well, urea accumulates in the blood and its concentration resulting in high urea in the blood rises.
high blood urea is incorrectly written and should be written as "UREA HIGH." being its meaning:
When urea is high or elevated in blood is called URAEMIA. Also called " blood urea nitrogen. Urea.1. the urea in the blood occurs when the kidneys have trouble reabsorbing the urea, which is a product of waste from the liver and delnresto of the body. Connun see blood test detects the high level.