This is a common concern; however, it is not necessary to dispose of the whole tray if an error occurs. Becton Dickinson can provide Guardian Stock Boxes for hospitals. These contain replacement catheters which can be substituted for contaminated catheters and the procedure continues as per protocol.u003cbr/u003eThere are very limited reports of these incidents and the monitoring of usage of product from Guardian Stock Boxes supports the fact that errors are not frequently made.