minutventilation
Minute ventilation, sometimes misspelled as minutventilation, is the volume of air inhaled or exhaled per unit time. It is calculated as the product of tidal volume (the amount of air moved per breath) and respiratory rate (breaths per minute): minute ventilation = tidal volume × respiratory rate. This measure reflects the overall air exchange performed by the lungs in a given moment.
In a healthy adult at rest, tidal volume is about 0.5 liters and the respiratory rate is
Measurement of minute ventilation can be done directly at the mouth or nose with spirometry or inferred
Factors influencing minute ventilation include metabolic demand, body size, age, sleep state, physical activity, pain, and