Medicine Pre-renal Azotemia is characterized by all of the following. Except – A Fractional excretion of Na< 1% B Urinary osmolality > 500 mosm/kg C Urinary sodium concentration > 40 meq/1 D Reversible with replacement fluids 💡 Explanation Pre-renal Azotemia is characterized by all of the following. Except - ✓ Correct Answer: C. Urinary sodium concentration > 40 meq/1