BUN 6 - 25 HIGH DIFFERENTIAL DIAGNOSIS
DIFFERENTIAL DIAGNOSIS OF ELEVATED BUN
Prerenal
Hypovolemia
Decreased Cardiac Output
Myocardial Infarction
Arrythmia
Cardiac Tamponade
Renal
Vasculitis
Microscopic Polyangiitis
Poststreptococcal Glomerulonephritis
Rapidly Progressive Glomerulonephritis
Post-Streptococcal Glomerulonephritis
HIV-Associated Nephropathy
Membranous Nephropathy
Focal Segmental Glomerulosclerosis
Membranoproliferative Glomerulonephritis
Postrenal
Prostatic Obstruction
Benign Prostatic Hypertrophy
Prostate Cancer
Urethral Stricture
Increased Protein Absorption
High Protein Diet
Upper Gastrointestinal Bleeding
Medications
Corticosteroids
Tetracyclines (decreases hepatic protein synthesis and increases hepatic deamination of amino acids)
Tissue Trauma