Urea nitrogen in urine (g/L)

 

  Urine volume (L/24 h)  
 

Blood urea nitrogen at start of 24-h collection (mg/dL)

Urea production* (g/day)
  Blood urea nitrogen at end of 24-h collection (mg/dL)  
  Body mass (kg)  
  female male (*based on blood urea nitrogen measurement)