Two things I highy recommend:
1. The book "Palliative and Serious Illness Patient Management for Physician Assistants," edited by Nadya Dimitrov and Kathy Kemle.
2. The certificate course at CSU Shiley (link https://csupalliativecare.org/courses/physicians-pas-nps/physician-assistant-certificate-in-palliative-care/here).
100%. Good luck!!