<prompt> An elderly male presents with one episode of gross haematuria. All of the following investigations are recommended for invastigating this patient exceptCystoscopyUrine microscopy for malignant cellsUrine tumor markersIntravenous pyelogram  <response>: Elderly male with gross hematuria the provisional diagnosis is ca urinary bladder . Investigations in a case of urinary bladder ca .1 urine cytology - this is not a good screening test but a positive result is highly specific and is more useful with highgrade disease and CIS . New tests based on nuclear matrix proteins NMP22 or mini microsome maintainance proteins MCM or epigenetic events are under evaluation and not routinely used . 2 Blood - HB , electrolytes , urea 3 CT ,MRI ,IVU , USG -should be done in all patients 4 cystourethroscopy is the mainstay of evaluation Bailey and Love 27th edition chapter 77 .pg no. 1449 . 