What does PA mean in medical terminology?
Definition of Posteroanterior (PA) Posteroanterior (PA): In anatomy, posteroanterior (PA) means from back-to-front. For example, a PA X-ray of the chest is taken from back-to-front. PA in this respect is the opposite of AP, which stands for anteroposterior: from front-to-back. ———————— Definition of Assistant, physician (PA) Assistant, physician (PA): A physician assistant (PA) is a mid-level medical practitioner who works under the supervision of a licensed doctor (an MD) or osteopathic physician (a DO).
