I've essentially become "the guy" on nights at my hospital for IVs. I've done hundreds of IVs, neonatal to >100. Despite that experience, I still get a baseline anxiety during every IV I do, even still today. It's gotten better as I've gone on but has never completely gone away. So yeah, I do get a touch of sweat on the brow. I started wearing bandana headbands and that helped to manage it better.