Kidney Function
Normal range 10-20 ratio. Specimen: Serum (calculated).
Also known as: BUN/Cr ratio.
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for BUN-to-Creatinine Ratio; those can be narrower than the band shown.
| Specimen | Serum (calculated) |
|---|---|
| Conventional range | 10-20 ratio |
| SI range | 10-20 ratio |
| Panel | Kidney Function |
The standard teaching reference range for BUN-to-Creatinine Ratio is 10-20 ratio. This value is measured in serum (calculated).
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Above the range
What causes a high BUN-to-Creatinine Ratio? Read as its own page
Below the range
What causes a low BUN-to-Creatinine Ratio? Read as its own page
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