Nephrology · Internal Medicine · Emergency Medicine
Blood Urea Nitrogen to Creatinine Ratio calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
Complete all required inputs to calculate the score.
Formula inputs
- Blood urea nitrogen (mg/dL)Accepted range: 1 to 200
- Serum creatinine (mg/dL)Accepted range: 0.1 to 20
Primary source
Diskin CJ et al. The differential diagnosis of elevated blood urea nitrogen/creatinine ratio. Am J Kidney Dis. DOI: 10.1016/S0272-6386(12)80042-8. PMID: 6722273. Scope: BUN/creatinine ratio computed from concurrent serum BUN and creatinine in mg/dL. (1984)
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