Why?
Tysabri is only once a month and unless your veins are “spidery” no need to get that invasive. I would have wanted a clear explanation of why he wants to do this.
Extra hydration does wonders for wobbly veins.
I go once a month for blood draws for 5 years for post Lemtrada and as a retired RN, there are some of us who could put an IV in a butterfly!