Answer
1) KUB X-Ray
2) Double J tube at the left kidney to the bladder, no evidence of stone formation.
3) Double J Stent
It is a soft tube that is placed during surgery inside ureter that bypasses the passage from kidney to the urinary bladder. This tube has a curl at both ends designed to prevent the stent from moving down into the bladder or up into the kidney.
4) Indication for Procedure X
a) Relieve or bypass the blockage in ureter
b) Removal of tumors from either the ureter or the kidney
c) Repair of scars in the ureter
d) Removal of tumors from around the ureter
5) Duration for Double J Stent
Stents usually are not left in for longer than three (3) months.
Reference: "DOUBLE J STENT INSTRUCTIONS", MetroUrology, January 2008