Certain factors, such as dehydration, pregnancy, high or low protein intake, steroids, and aging can impact your levels without indicating a health risk. However, abnormal BUN levels don’t necessarily mean you have a kidney condition. Urea nitrogen levels tend to increase with age. But normal ranges may vary, depending on the reference range used by the lab and your age. A medication wouldn’t be recommended to lower BUN levels. What is considered a low BUN level In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L ) is considered normal. Pregnancy and laboratory studies: a reference table for clinicians. When the BUN / Creatinine ratio is raised will suggest: Prerenal azotemia. This will suggest intrarenal disease: Glomerulonephritis. BUN/creatinine ratio in the normal range, in the case of raised BUN and creatinine. It helps them see how well your kidneys are working. BUN/Creatinine ratio: The normal BUN/creatinine ratio is around 10:1. A low-protein diet can also help lower BUN levels. During the 2430 weeks of PoG (979 pregnant women), the mean SC (SD) was 47.7 (8.1) mol/L, with a slightly skewed distribution (skewedness 1.9). Abbassi-Ghanavati M, Greer LG, Cunningham FG. 6 min read Doctors order a blood urea nitrogen (BUN) test to measure the amount of urea nitrogen in your blood. Proper hydration is the most effective way to lower BUN levels. The range is wide pertaining to normal variations due to protein intake, endogenous protein catabolism, state of hydration, hepatic urea synthesis, and renal urea excretion. On the flip side, if the liver is not producing enough BUN, levels will show lower than normal. Overproduction in the liver or under-excretion by the kidneys will cause BUN levels to rise above normal. Keep in mind that some medications, such as certain antibiotics, can raise your BUN levels.ĭepending on your test results, your doctor may also run other tests to confirm a diagnosis or recommend treatments. When the liver and kidneys are working properly, BUN levels should be normal. Normal BUN levels for adults over 60 are slightly higher than normal levels for adults under 60. children 1 to 17 years old: 7 to 20 mg/dL.In general, normal BUN levels fall in the following ranges: This topic will discuss reference intervals (or ranges) for laboratory values during pregnancy based upon the authors review of the literature. It’s also important to note that each laboratory has different ranges for what’s normal. Normal BUN values tend to vary depending on gender and age. Results of a BUN test are measured in milligrams per deciliter (mg/dL).
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