I have terrible tremors. Dx as essential tremors I was on Inderal ER 80mg BID...didn't really help. Yes, nerves make it worse, but I too was able to start IVs and do blood draws. I worked in SDS prep, so starting IVs was a must. What I hate the most about them is that the patients thought I was nervous. Some people have fragile veins and sometimes you hit a valve which made me feel like a failure, but with my repeats, I actually had people request me, so I couldn't have been that bad. Unfortunately, the more you use the muscle group the more you'll shake, so take a deep breath find your target and more than likely you will get your target, especially if you can rest part of your hand on something. I read the only way to get rid of them is a wire inserted into your thalamus, but not 100% always works. Good-luck to us all with this "disability"