changing positive pressure caps

[Glenn and Dayna Holt]

I have a question for the group.  When you change the positive pressure cap on your central line, what technique do you use?  Sterile gloves or not?  Do you scrub the threads of the hub with alcohol before attaching the new cap or do you not touch the threads of the hub?  Does anyone have any standards and/or studies that support a particular technique?   Dayna Holt, RN, CRNI San Diego