cmH2O stands for?

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Multiple Choice

cmH2O stands for?

cmH2O stands for centimeters of water, a unit of pressure used to express airway pressure in sleep medicine. It measures how high a column of water would be pushed by the same pressure, so it directly reflects pressure rather than flow or gas content. This is why pressures for therapies like CPAP are described in cmH2O (for example, 6 cmH2O), not in output (volume per time) or oxygen concentration. One centimeter of water is a small, but practical, pressure unit (about 98 Pa), making cmH2O a convenient way to quantify airway pressures in clinical settings.

cmH2O stands for centimeters of water, a unit of pressure used to express airway pressure in sleep medicine. It measures how high a column of water would be pushed by the same pressure, so it directly reflects pressure rather than flow or gas content. This is why pressures for therapies like CPAP are described in cmH2O (for example, 6 cmH2O), not in output (volume per time) or oxygen concentration. One centimeter of water is a small, but practical, pressure unit (about 98 Pa), making cmH2O a convenient way to quantify airway pressures in clinical settings.

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