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A high BUN/creatinine ratio in your blood tests may result from three reasons: elevated BUN and normal creatinine, normal BUN and low creatinine, or both BUN and creatinine elevated, but BUN is disproportionately higher.
High blood creatinine levels can indicate that your body has a reduced ability to get rid of waste products – an important kidney function. Even if you feel fine, elevated blood creatinine...
When your BUN levels are compared to your creatinine levels, it gives a fuller picture of what’s happening with your kidneys. This is known as the BUN/creatinine ratio.
In general, around 6 to 24 mg/dL (2.1 to 8.5 mmol/L) is considered normal. But normal ranges may vary, depending on the reference range used by the lab and your age. Ask your doctor to explain your results.
BUN indicates the urea nitrogen produced in the body during protein breakdown. It is removed from the body through urine. A decline in kidney function due to a disease or kidney damage can cause an increase in BUN.
A high Blood Urea Nitrogen (BUN)/Creatinine ratio indicates an imbalance in the kidney's ability to filter and remove waste. This measure becomes significant when understanding renal health, signaling how the kidneys manage urea and creatinine, two crucial by-products of metabolism.
What does high blood urea nitrogen mean? High BUN levels may suggest that your kidneys aren’t working as they should. However, even if your kidneys are working properly, you may have elevated BUN levels from the following: High-protein diet. Dehydration. Aging (infants and children have lower BUN levels).