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Understanding Anesthesiology - The Global Regional Anesthesia ...

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Ventilator<br />

A ventilator is a machine which delivers an inspiratory breath to the patient using positive<br />

pressure and allows the passive expiration of that breath. Modern ventilators have many different<br />

modes that allow it to accommodate the pathophysiology of a variety of pulmonary<br />

and systemic conditions as well as the specific goals of a given anesthetic technique.<br />

<strong>The</strong> most basic distinctions in modes are:<br />

i) Volume control, where the tidal volume is set and the pressure generated is variable, a<br />

function of pulmonary compliance.<br />

ii) Pressure control, where the pressure delivered is set and the tidal volume is variable,<br />

(also) a function of pulmonary compliance.<br />

Related Glossary Terms<br />

Mechanical ventilation, Positive pressure ventilation, Tidal volume<br />

Index<br />

Find Term<br />

Chapter 2 - Anesthetic Equipment and Monitoring

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