zygote, ramping was the best advice, but the endocrinologist I don't see told me that the heart pounding is because PTH is a vasodilator. As your vascular system dilates your heart beats harder, faster to ensure that the lower fluid volume for the space (created by the dilation) circulates sufficiently. You might be advantaged by a glass of water and something a little salty before the injection. Salt constricts blood vessels and the water increases volume. Thanks for naming the gentleman. I'll be happy when I get a consultation with him.
I'll quiz him, Mablin. What should I ask?