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BUN to creatinine ratio. The ideal ratio of BUN to creatinine falls between 10-to-1 and 20-to-1.
The normal range for BUN/Creatinine ratio is anywhere between 5 – 20 mg/dL. BUN/Creatinine ratio increases with age, and with decreasing muscle mass [6]. A low BUN/Creatinine ratio indicates an underlying disease/disorder and will usually be accompanied by the symptoms of this underlying disorder.
A “normal” BUN level varies, and usually increases as you get older. Checking your BUN level is usually not very helpful by itself. So, your healthcare provider will likely compare your BUN level to your creatinine and eGFR levels when evaluating your kidney health.
According to the BUN/creatinine ratio chart, normal BUN/creatinine ratio typically falls between 10:1 or 20:1, and with age it is likely to be on the higher end of normal. Values consistently around 20:1 may be early warning signs of kidney disease.
What is the normal BUN creatinine ratio? The ideal ratio is between 10:1 and 20:1. If the result is higher than the numbers mentioned, it indicates that there is a high level of BUN in the blood.
Results of the BUN test are measured in milligrams per deciliter (mg/dL) in the United States and in millimoles per liter (mmol/L) internationally. In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L ) is considered normal.
What is the BUN/Creatinine Ratio? The Blood urea nitrogen (BUN): Creatinine Ratio [BUN/Creatinine Ratio] is a renal (related to kidneys) function indicator, commonly used to diagnose acute or chronic renal (kidney) disease or damage. Blood Urea Nitrogen (BUN) and creatinine are both waste products of normal metabolism in the human body.
What is a normal blood urea nitrogen level? A normal blood urea nitrogen level varies according to your age and sex. Children between 1 and 17 years. Between 7 and 20 mg/dL. Adult women and people assigned female at birth. Between 6 and 21 mg/dL.
What does it mean if a patient's BUN creatinine ratio is high or low? The answer is simple: BUN/creatinine ratio <10 suggests an intrinsic renal cause. The table shows the list of possible causes for both outcomes – all should be considered: Blood urea nitrogen (or BUN for short) is a laboratory blood test that measures the amount of urea nitrogen.
BUN and creatinine tests can be used together to find the BUN-to-creatinine ratio (BUN:creatinine), which is more specific than the BUN test alone. More specific tests such as glomerular filtration rate (GFR) and creatinine clearance may be performed further to diagnose kidney failure.