Diagnostic finding

Elevated BUN/creatinine ratio

An increased proportion of blood urea nitrogen (BUN) relative to serum creatinine (normal ratio: 10:1 to 20:1), with a ratio >20:1 indicating disproportionate urea accumulation.

Causes

  • Pre-renal hypovolemic renal failure: Dehydration, hemorrhage

  • Increased urea production

    • High-protein diet

    • Upper gastrointestinal bleeding

    • Catabolic stress

    • Trauma

    • Burns

    • Sepsis

  • Medications

    • Corticosteroids

    • Diuretics

    • Tetracyclines

Also known as: Elevated blood urea nitrogen/creatinine ratio, High BUN/creatinine ratio, Increased BUN/creatinine ratio

Referencing diagnoses

Note: Lists existing diagnoses in Diagnotize only.