• Blood tests

• X-rays

• Intravenous urogram - it involves injection of a special dye that shows up the whole urinary system and any stones on X-ray images

• Ultrasonography ( recommended for pregnant women) 

• Computed tomography - this uses X-rays to make a three-dimensional image of the area

• Non-contrast helical CT scan - detect both stones and urinary tract obstruction

• Intravenous pyelogram