This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.
BUN/Creatinine Ratio
Urea nitrogen to creatinine – also from urea in mg/dl or mmol/l
Scientific basis
Children
In infants and young children, serum creatinine is low because of the low muscle mass; the ratio therefore comes out higher on calculation. The interpretation remains a clinical one.
Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.
Frequently asked questions
BUN/Creatinine Ratio: What does this calculator compute?
Calculates the ratio of blood urea nitrogen (BUN) to creatinine (mg/dl); urea values in mg/dl or mmol/l and creatinine in µmol/l are converted. Classification according to the usual range 10–20 and the notes of Uchino et al. 2012.
BUN/Creatinine Ratio: Which sources is this calculator based on?
Uchino S, Bellomo R, Goldsmith D: The meaning of the blood urea nitrogen/creatinine ratio in acute kidney injury (Clin Kidney J 5:187–191) (2012)