Well, I don't know what an EMG is, but I had a myelogram once. I googled it to make sure that was what I had - dye was injected into the spinal fluid, and in my case they were looking for a CSF leak in my head, so they tilted the table at a 45º angle to get the dye to flow to my head, and took a CT scan. It went smoothly and I was able to drive myself home afterward. (I'm not sure if this was any help to you.)