HFOV typically oscillates gas at what frequency range?

High-Frequency Oscillatory Ventilation (HFOV) is a form of mechanical ventilation that utilizes rapid oscillations of gas to facilitate gas exchange in the lungs, primarily in patients with acute respiratory distress syndrome (ARDS) or other severe respiratory conditions. The typical frequency range for HFOV is between 3 to 15 Hz.

This frequency range is crucial because it allows for effective ventilation while minimizing potential lung injury associated with traditional mechanical ventilation strategies. By oscillating at these frequencies, HFOV optimizes alveolar recruitment and improves ventilation-perfusion matching, leading to better oxygenation and carbon dioxide removal.

Frequencies below 3 Hz may not provide adequate ventilation, while frequencies above 15 Hz can lead to increased resistance in the airways and may not effectively allow for gas exchange. Thus, the correct range reflects clinical practices and physiological principles that ensure patient safety and optimal respiratory mechanics.