Question

with a respiratory rate of 12 breaths per minute and a tidal volume of 500ml, what would the minute ventilation be? multiple choice 500 ml per minute 41.6 ml per minute 600 ml per minute 60 liters per minute 6 liters per minute

Explanation:

Step1: Recall minute - ventilation formula

Minute ventilation ($V_E$) is calculated as the product of respiratory rate ($f$) and tidal volume ($V_T$), i.e., $V_E=f\times V_T$.

Step2: Substitute given values

Given $f = 12$ breaths per minute and $V_T=500$ mL. So $V_E=12\times500$ mL/min = 6000 mL/min.

Step3: Convert mL to L

Since 1 L = 1000 mL, then $V_E=\frac{6000}{1000}$ L/min = 6 L/min.

Answer:

E. 6 liters per minute