Book excerpt: The new, fifth edition of A Comprehensive Review for the Certification and Recertificiation Examinations for Physician Assistants is the foremost trusted preparation resource for the PANCE and PANRE. The text features high-yield outline-format review and pretest and post-test questions based on the blueprint of the National Commission on Certification of Physician Assistants (NCCPA). Developed and endorsed by the American Academy of Physician Assistants (AAPA) and the Physician Assistant Education Association (PAEA), this edition's content reflects up-to-date information and has been reviewed and validated by subject matter experts working hard in the field.