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Blood test bun normal range4/19/2024 ![]() Where 60 represents MW of urea and 14*2 MW of urea nitrogen. A good Blood urea nitrogen (BUN) is usually between 7 and 20 mg/dL. Your BUN value of 94 mg/dL is way too high. This analysis helps you to check if your BUN value is within normal range. Elsewhere, the concentration of urea is reported in SI units as mmol/L.ī U N m g / d L You received your blood test result with a BUN value of 94 mg/dL. A diagnosis of lupus is based on a combination of symptoms, physical examination abnormalities (for example, a rash or swollen. To know what is considered high you have to know the range used by the laboratory that conducted your test results. ![]() United States, Mexico, Italy, Austria, and Germany). Some do so as a range of 0 to 4+ (0, 1+, and 2+ are low titers 3+ and 4+ are high), others as numbers. There may be slight variations between labs. OTC deficiency is also accompanied by hyperammonemia and high orotic acid levels.īUN is usually reported in mg/dL in some countries (e.g. The normal range of blood urea nitrogen (BUN) is between 7 and 20 mg/dL or 2.5 and 7.1 mmol/L. 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. 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. 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. BUN level results are measured in milligrams per deciliter (mg/dL) or millimoles per liter (mmol/L). 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. ![]() Your BUN value of 34 mg/dL is way too high. Individual laboratories will have different reference ranges, as the assay used can vary between laboratories. You received your blood test result with a BUN value of 34 mg/dL. 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. 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. ![]()
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