Define tidal volume in the context of mechanical ventilation.

Tidal volume in the context of mechanical ventilation refers specifically to the amount of air that is delivered to the lungs with each ventilatory cycle. This is a critical parameter in mechanical ventilation settings, as it directly influences how much oxygen reaches the alveoli and how carbon dioxide is expelled from the body. Setting an appropriate tidal volume is essential for maintaining adequate gas exchange while preventing potential lung injury caused by over-distension or under-inflation of the lungs.

The tidal volume is typically measured in milliliters (mL) and is customized for individual patients based on factors such as body weight and clinical condition. Correctly identifying tidal volume is fundamental for healthcare professionals managing patients on mechanical ventilation.