What tidal volume typically maintains normal oxygenation and elimination of carbon dioxide?

Tidal volume (TV) refers to the amount of air that is inhaled or exhaled during normal breathing. For healthy adults, the typical tidal volume is approximately 6 to 8 milliliters per kilogram of body weight. This volume is generally adequate to maintain normal oxygenation and effective elimination of carbon dioxide.

Calculating tidal volume based on body weight provides a more personalized measurement. For example, for a 70 kg adult, the tidal volume would be:

$TV = 6 \text{ to } 8 \, \text{ml/kg} \times 70 \, \text{kg} = 420 \text{ to } 560 \, \text{ml}$

This range of tidal volume is usually sufficient to ensure optimal gas exchange in healthy individuals. Factors such as age, sex, body composition, and health status can influence tidal volume, but the aforementioned range serves as a standard benchmark for most adults.