WHEN IN A PROCEDURE: THEY WERE USING THE FLUORO PEDAL AND THEY TOOK THEIR FOOT OFF THE PEDAL AND IT WOULD NOT STOP FLUOROING. THE STAFF HAD TO HIT THE EMERGENCY STOP BUTTON. THEY STATED THIS IS NOT THE FIRST TIME THIS HAS HAPPENED. NO ADVERSE EFFECTS ON PATIENTS AND THE PROCEDURE WAS COMPLETED WITHOUT FURTHER INCIDENT.