A pediatric physician assistant is a health care worker who specializes in care for children. Their responsibilities include treating, examining, and diagnosing their young patients, as well as reviewing and updating patient records. They assist the physician in routine and emergency care, like setting broken bones or providing a vaccine. In some states, they are authorized to prescribe some medications that treat the common illnesses with the supervision of a physician. Pediatric physician assistants must have all the qualifications of physician assistants and chose to specialize in child health care.