Surgery A 60 yr old smoker came with a history of painless gross hematuria for one day. Most logical investigation would be A Urine routine B Plain X ray KUB C USG KUB D Urine microscopy for malignant cytology 💡 Explanation A 60 yr old smoker came with a history of painless gross hematuria for one day. Most logical investigation would be ✓ Correct Answer: D. Urine microscopy for malignant cytology