Which ventilator parameter has a typical value of 160 cm H2O?

Which ventilator parameter has a typical value of 160 cm H2O?

• A. Maximum Expiratory Pressure
• B. Mean Airway Pressure
• C. Static Lung Compliance
• D. WOB

Answer: (A)

Maximum expiratory pressure is the peak pressure a person can generate during a forceful expiration. That value is expressed in cm H2O, and about 160 cm H2O is a typical benchmark for a normal, healthy individual, which is why this parameter is associated with that number. Mean airway pressure, while also a pressure measure, sits at much lower values because it represents the average pressure in the airway over the whole breath, influenced by PEEP and inspiratory pressures. Static lung compliance is a measure of how easily the lung expands, expressed as volume per unit pressure (mL/cm H2O), not a single cm H2O value. Work of breathing reflects the overall energy cost of breathing, not a direct pressure value like 160 cm H2O. So the parameter that commonly has a value around 160 cm H2O is maximum expiratory pressure.

Maximum expiratory pressure is the peak pressure a person can generate during a forceful expiration. That value is expressed in cm H2O, and about 160 cm H2O is a typical benchmark for a normal, healthy individual, which is why this parameter is associated with that number. Mean airway pressure, while also a pressure measure, sits at much lower values because it represents the average pressure in the airway over the whole breath, influenced by PEEP and inspiratory pressures. Static lung compliance is a measure of how easily the lung expands, expressed as volume per unit pressure (mL/cm H2O), not a single cm H2O value. Work of breathing reflects the overall energy cost of breathing, not a direct pressure value like 160 cm H2O. So the parameter that commonly has a value around 160 cm H2O is maximum expiratory pressure.