Elsewhere, the concentration of urea is reported in SI unit as mmol/L, which is generally depending on the lab.ī U N m g / d L
OTC deficiency is also accompanied by hyperammonemia and high orotic acid levels.īUN (urea-N) is mg/dL in the United States, Mexico, Italy, Austria, and Germany. Reference ranges for blood tests, comparing urea (yellow at right) to other blood constituentsĪnother rare cause of a decreased BUN is ornithine transcarbamylase deficiency, which is a genetic disorder inherited in an X-linked recessive pattern. The main causes of a decrease in BUN are malnutrition (low protein diet), severe liver disease, anabolic state, and syndrome of inappropriate antidiuretic hormone. Why is a blood urea nitrogen test done A healthcare provider may recommend a BUN test during a. Hypothyroidism can cause both decreased GFR and hypovolemia, but BUN-to-creatinine ratio has been found to be lowered in hypothyroidism and raised in hyperthyroidism. You may have a condition thats affecting your kidneys health. The main causes of an increase in BUN are: high-protein diet, decrease in glomerular filtration rate (GFR) (suggestive of kidney failure), decrease in blood volume ( hypovolemia), congestive heart failure, gastrointestinal hemorrhage, fever, rapid cell destruction from infections, athletic activity, excessive muscle breakdown, and increased catabolism. The normal range is 2.1–7.1 mmol/ L or 6–20 mg/ dL. Interpretation īUN is an indication of renal (kidney) health. It is not considered as reliable as creatinine or BUN/creatinine ratio blood studies. The test is used to detect renal problems. Individual laboratories will have different reference ranges as the assay used can vary between laboratories. Normal human adult blood should contain 6 to 20 mg/dL (2.1 to 7.1 mmol/L) of urea nitrogen. The liver produces urea in the urea cycle as a waste product of the digestion of protein. Diet and medications can help.6299-2, 59570-2, 12961-9, 12963-5, 12962-7īlood urea nitrogen ( BUN) is a medical test that measures the amount of urea nitrogen found in blood.
Long-term, high phosphate levels can cause brittle weak bones, muscle and joint pain, and may cause serious heart problems. High levels can cause itching, and sore red eyes. Phosphate is a mineral in food that can build up in the body. The results can be affected by age and other factors. This also shows the level of kidney function. The dietitian will be able to advise you if you need to restrict foods containing potassium.Ĭreatinine is a breakdown product of normal muscle and meat in the diet. Very high levels can cause irregular heart rhythms and even cardiac arrest (stop your heart). Potassium is a natural chemical or electrolyte which occurs in many foods. Please discuss any concerns with your team. It is important to understand how the results relate to your symptoms and your future planned care. Shows how well controlled your blood sugar levels have been for the past 2-3 months.Īs well as eGFR there are other blood tests which give an idea of how well your kidneys are filtering waste products. If you have diabetes you blood sugar level will be measured using a test called HbA1c. The lower your cholesterol level the better. This is a fat in your blood which can raise yourrisk of a heart attack. The second figure is the 'diastolic' measuring the pressure in between heart beats. The first figure is the 'systolic', measuring the pressure in your blood vessels when your heart pumps. If you would like some help with this, please ask.īlood Pressure is given as two figures, for example 130/80 mmHg. Some patients find monitoring their blood pressure at home helpful. Blood Pressure (BP) Monitor your blood pressure.
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