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.

Medical dictionary. 2011.

Look at other dictionaries:

  • posteroanterior (PA) projection — a radiographic projection in which the central ray goes from the back to the front of the body, with the film at the front …   Medical dictionary

  • Posteroanterior (anatomic orientation) — From back to front, as opposed to anteroposterior. A chest x ray taken with the chest against the film plate and the x ray machine behind the patient is a posteroanterior (PA) view. For a more complete listing of terms used in medicine for… …   Medical dictionary

  • pa — 1. Abreviatura de posteroanterior. 2. Abreviatura de presión arterial. 3. PA. Véase presión alveolar Diccionario Mosby Medicina, Enfermería y Ciencias de la Salud, Ediciones Hancourt, S.A. 1999 …   Diccionario médico

  • posteroanterior — PA; adj. from the back to the front. In radiography it refers to the direction of the X ray beam (i.e. from the back to the front of the patient); thus a PA radiograph is taken with the X ray film in front of the patient. Normally, a chest… …   The new mediacal dictionary

  • PA (posteroanterior) — In anatomy, PA stands for posteroanterior: 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 …   Medical dictionary

  • Pa — Symbol for pascal; protactinium. * * * panic attack; pantothenic acid; paralysis agitans; paranoia; parathion; passive aggressive; pathology; patient s advocate; peak amplitude; performance assessment; periarteritis; peridural artery; periodic… …   Medical dictionary

  • PA X-ray — An X ray picture in which the beams pass from back to front (posteroanterior). As opposed to an AP (anteroposterior) film in which the rays pass through the body from front to back …   Medical dictionary

  • PA — Pancreatitis aguda Poliartritis Posteroanterior Presión alveolar Presión arterial Presión parcial alveolar Pseudomona Aeruginosa …   Diccionario de siglas médicas y otras abreviaturas

  • PA — abbr. geogr. Pennsylvania Program Access Program Attention procurement authorization particular average loss med. posteroanterior – заднепередний med. pulmonary artery – легочная артерия …   Dictionary of English abbreviation

  • PA — see posteroanterior …   The new mediacal dictionary

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