Q | how is the procedure carried out?

A | Your specialist will discuss with you the findings of kidney stones and may suggest lithotripsy to try and clear you of stones.

An appointment will be made for you to attend the lithotripsy unit. You will be informed by telephone or post.

On attending the lithotripsy unit, you will be asked to changed into a gown and will be given a mild painkiller in the form of a small suppository.

You will be asked to lie down on a large couch table and the radiographer (X-ray technician) will use an ultrasound or X-ray scanner to locate your stone on a TV monitor.

The lithotripsy treatment will then start and you will hear a number of loud regular clicks as the shock wave energy is produced. The treatment starts at a low power initially and it is gradually increased depending on how you feel.