A blood urea nitrogen test, also known as a blood urea nitrogen (BUN) test, is an important kidney function test that helps doctors determine whether your kidneys are healthy or require medical attention. body at height.

What is urea?

Urea is one of the body’s waste, and it is made in the liver and then passed to the kidneys as follows:

• The liver produces ammonia (a nitrogen-containing compound) after breaking down proteins.
• Urea is formed by combining nitrogen with carbon, oxygen and hydrogen.
• Urea travels from the liver to the kidneys to be filtered and expelled through the urine.

We conclude from the above that if urea levels are higher than the normal level, this indicates a problem in the kidneys.

What happens when the level of urea in the body is high?

The high level of urea in the blood leads to a condition known as uremia, uremia, or uremia, which is a severe increase in the concentration of urea in the blood, with disturbances in the levels of body fluids, electrolytes, hormones, and metabolic problems. It is an emergency; noting Hazardous urea level Indicated in the results of the required analyzes that there is severe damage to the kidneys, which requires undergoing dialysis.

Does high urea cause kidney failure?

Uremia develops in parallel with the deterioration of kidney function; That is, high levels of urea in the blood are a sign of kidney failure, and the inability of the kidneys to filter the blood properly, which leads to the accumulation of toxins in the blood.

How to perform a urea . analysis

Like any other blood test, this test is done by drawing a sample of blood from a vein in your arm with a fine needle in a laboratory. You’ll feel a slight prick and some discomfort during the procedure.

What is the normal ratio of urea and creatine in the body?

The normal ratio of urea and creatine in the blood varies proportionally between sources, and the following are these ratios:

Normal urea level in the blood

The normal level of urea ranges between 5 to 20 mg/dL according to one source, while another source states that it ranges between 7 to 20 mg/dL, another source is between 6 to 24 mg/dL, and we find this big difference due to the amount of protein that was eaten The breakdown of proteins during digestion, the extent of dehydration of the body, the manufacture of urea in the liver, and the rate of excretion of urea from the kidneys.

One source states that urea as high as 100 mg/dL is the dangerous urea level that suggests serious impairment in kidney function.

Normal creatinine level in the blood

The normal creatinine level in the blood ranges between 0.7 and 1.35 mg/dL in men, and 0.59-1.04 mg/dL in women.

How to reduce the level of urea

Treatment of high blood urea level depends on knowing the cause, for example, the doctor prescribes medications to treat autoimmune diseases, or surgery to remove blockages (kidney stones, for example), or to control sugar levels and blood pressure, and in the event the patient reaches the dangerous level of urea. (uremia), he will likely need dialysis.