The pressure is computed assuming an International standard sea-level pressure datum of 1013.25 hPa, and therefore is not necessarily the same as the aircraft's true altitude either above mean sea level or above ground level.he pressure is computed assuming an International standard sea-level pressure datum of 1013.25 hPa, and therefore is not necessarily the same as the aircraft's true altitude either above mean sea level or above ground level.
The term pleurisy (pleuritis) is inflammation or infection in the pleural space around the lungs. Pyothorax also known as empyema of the pleural cavity is the presence of pus in the pleural cavity between the layers of the pleural membrane Py/o-Pus.
A pleural effusion is an unusual amount of fluid around the lung. There are many medical conditions that can lead to it, so even though your pleural effusion may have to be drained, your doctor likely will target the treatment at whatever caused it. The pleura is a thin membrane that lines the surface of the lungs and the inside of the chest wall outside the lungs.