Minute Ventilation (VE) is calculated as which, and what is its typical resting range?

Minute Ventilation (VE) is calculated as which, and what is its typical resting range?

• A. 50-60 L/min; VE = HR x TV
• B. 5-6 L/min; VE = TV x f
• C. 1-2 L/min; VE = TV + f
• D. 15-20 L/min; VE = TV x f^2

Answer: (B)

Minute ventilation is how much air moves in and out of the lungs each minute. It’s determined by how much air is moved per breath (tidal volume) and how many breaths occur per minute (respiratory rate). Multiply tidal volume by respiratory rate to get VE, with TV in liters and f in breaths per minute, so VE is in liters per minute. At rest, this typically comes out to about 5–6 L/min. For example, a tidal volume around 0.5 L with a breathing rate near 12 breaths per minute yields roughly 6 L/min. The heart rate doesn’t set ventilation, and you don’t add TV and f or square f—the correct relation is VE = TV × f.

Minute ventilation is how much air moves in and out of the lungs each minute. It’s determined by how much air is moved per breath (tidal volume) and how many breaths occur per minute (respiratory rate). Multiply tidal volume by respiratory rate to get VE, with TV in liters and f in breaths per minute, so VE is in liters per minute. At rest, this typically comes out to about 5–6 L/min. For example, a tidal volume around 0.5 L with a breathing rate near 12 breaths per minute yields roughly 6 L/min. The heart rate doesn’t set ventilation, and you don’t add TV and f or square f—the correct relation is VE = TV × f.