BUN/Creatinine ratio differentiate between acute and chronic renal disease.
Prerenal azotemia appears when there is poor renal perfusion like hypovolemia, hypotension.
Postrenal azotemia is due to obstruction.

Prerenal acute failure = BUN/Creatinine ratio  > 20 : 1
Renal acute failure  = BUN/Creatinine ratio < 20 : 1
Suggest renal azotemia or late postrenal azotemia when  BUN / Creatinine ratio = < 10:1
#diagnosis #algorithm #renal #BUN #blood urea nitrogen #creatinine #ratio
Daniel Kaihao Lam @daniellam · 4 years ago
Medical school applicant. Graduated from UC Davis with a B.S. in Neurobiology. Interested in psychiatry & neurology to learn about the enigmas of the brain (addiction, mental health, and aging brain deterioration). Looking for research! Currently scribing in ED & Ophthalmology.
Related images