If a patient has a VT of 370 ml and a respiratory rate of 20 breaths/min, what is the minute venti-lation?
a. 2.40 L/min
b. 3.70 L/min
c. 6.45 L/min
d. 7.40 L/min
ANS: D
Minute ventilation (exhaled) is denoted by E, which is calculated as the product of frequency of breathing (fB) times the expired tidal volume:
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