Blood urea test is used to evaluate liver and kidney function. So when is this test indicated and what does high blood urea mean?

A blood test is a test performed on a blood sample to measure the levels of certain substances in the blood or to count different types of blood cells. This is one of the routine tests ordered by doctors when examining and treating a patient.

Metabolic acidosis is a decrease in [HCO3-], reflecting either retention of fixed acids or loss of base. The compensatory response is increased ventilation leading to a decrease in PaCO2.

Urea is the final product of protein metabolism in the body. Urea is very soluble in water and is excreted from the body through urine. Therefore, the urea index can reflect the status of kidney function.