Medicine Acute pyelonephritis and uncomplicated UTI may be differentiated by all of the following Except : A WBC cast B Concentrating defect C Organisms in excess of 100,000 cfu/ml D Antibody to Tomm Horsfall protein 💡 Explanation Acute pyelonephritis and uncomplicated UTI may be differentiated by all of the following Except : ✓ Correct Answer: C. Organisms in excess of 100,000 cfu/ml