Study for the Respiratory Therapy Test. Use flashcards and multiple choice questions, featuring hints and explanations. Prepare for your exam successfully!

Multiple Choice

Minute ventilation VE is calculated as VE = VT × f. If VT = 0.493 L and f = 14 breaths/min, VE is approximately:

Minute ventilation shows how much air moves in and out of the lungs each minute, calculated by multiplying the air per breath (tidal volume) by the number of breaths taken each minute. With a tidal volume of 0.493 L and a breathing rate of 14 breaths per minute, VE = 0.493 × 14 = 6.902 L/min, which rounds to about 6.9 L/min. This is the value you get using the given VT and f. The other options would require different VT or f values, so they don’t fit the provided numbers.

Minute ventilation shows how much air moves in and out of the lungs each minute, calculated by multiplying the air per breath (tidal volume) by the number of breaths taken each minute. With a tidal volume of 0.493 L and a breathing rate of 14 breaths per minute, VE = 0.493 × 14 = 6.902 L/min, which rounds to about 6.9 L/min. This is the value you get using the given VT and f.

The other options would require different VT or f values, so they don’t fit the provided numbers.