Very effective! I was trained to start IV's using this technique and over the past 20 years I have mostly worked ER, but now am in radiology where I still start lots of IV's and people constantly thank me for the lidocaine. Many times they don't even feel it with the 29 ga insulin needle I use to inject it. I have tried saline which does very little to help discomfort and plain 1% lidocaine, but prefer the buffered 1% which is practically painless. Does anyone know if the radiology techs can use this technique, or is it strictly to be used by nurses? It is a medication so I wondered if that is possible or not. I am sure we could write a policy that covers it if needed and have it approved by our medical director. What do you all know about that?