Calculate the Alveolar ventilation per minute of a patient with respiratory rate 14/min, tidal volume of 500 ml with a vital capacity 7000 ml: (A) 4900 ml, (B) 2000 ml, (C) 7700 ml, (D) 7000 ml
Answer is A. Alveolar ventilation= Respiratory rate X (Tidal volume – Dead space)
Respiratory rate provided in question- 14 per minute
Tidal Volume- 500ml
Dead Space- 150 ml 
AV= 14 (500-150)= 14 X 350 = 4900ml/min = 4.9 L/min