12b- V/Q Ratio

Question 1

What is the optimum Ventilation/Perfusion ratio at an alveolar level?

(ie- alveolar ventilation= 4900ml/minute and pulmonary bloodflow= 4900ml/minute)

Answer 1

V/Q ratio= 1

Question 2

V/Q mismatch is the most common cause of hypoxaemia. Outline how a V/Q mismatch can be caused.

Answer 2