Plateau pressure
Plateau Pressure
Plateau pressure (pronunciation: /plæˈtoʊ ˈprɛʃər/) is a medical term used in mechanical ventilation to refer to the pressure in the lungs at the end of inhalation, when air flow is zero. This pressure reflects the amount of pressure applied to the small airways and alveoli in the lungs.
Etymology
The term "plateau pressure" is derived from the French word "plateau", meaning "flat surface", and the Old French "pression", meaning "pressure". This is in reference to the flat or level phase of the pressure waveform during a breath hold in mechanical ventilation.
Related Terms
- Peak pressure: The maximum pressure recorded during one complete cycle of mechanical ventilation. It includes pressure needed to overcome the resistance of the breathing circuit and the airways.
- Compliance: In the context of respiratory physiology, compliance is the change in lung volume for each unit change in pressure.
- Alveoli: Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.
- Mechanical ventilation: A method to mechanically assist or replace spontaneous breathing.
See Also
References
External links
- Medical encyclopedia article on Plateau pressure
- Wikipedia's article - Plateau pressure
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