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.
Pleurisy is a respiratory disease characterized by inflammation of the outer lining of the lungs. This inflammation, along with fluid buildup, creates friction (commonly referred to as a pleural rub, when heard using a stethoscope) during breathing, resulting in sharp chest pain, usually on inspiration.leurisy is a respiratory disease characterized by inflammation of the outer lining of the lungs. This inflammation, along with fluid buildup, creates friction (commonly referred to as a pleural rub, when heard using a stethoscope) during breathing, resulting in sharp chest pain, usually on inspiration.