What type of ventilator increases transpulmonary pressure (Pʟ)by mimicking the normal mechanism for inspiration?
A) Positive-pressure ventilation (PPV)
B) Negative-pressure ventilation (NPV)
C) High frequency oscillatory ventilation (HFOV)
D) High frequency positive-pressure ventilation (HFPPV)

Question

Quizplus · Accepted Answer

Negative-pressure ventilation (NPV)attempts to mimic the function of the respiratory muscles to allow breathing through normal physiological mechanisms.Positive-pressure ventilation (PPV)pushes air into the lungs by increasing the alveolar pressure.High frequency oscillatory ventilation (HFOV)delivers very small volumes at very high rates in a "to-and-fro" motion by pushing the gas in and pulling it out during exhalation.High frequency positive-pressure ventilation (HFPPV)pushes in small volumes at high respiratory rates.

What Type of Ventilator Increases Transpulmonary Pressure (Pʟ)by Mimicking the Normal