Final answer:
A V/Q mm ratio indicates a lung problem. Increasing or decreasing oxygen therapy depends on whether the V/Q ratio is decreased or increased. Decreased ventilation compared to perfusion requires an increase in oxygen while increased perfusion compared to ventilation may not benefit as much from increased oxygen.
Step-by-step explanation:
A V/Q mm ratio indicates a lung problem. If the V/Q ratio is decreased, it means there is a decrease in ventilation compared to perfusion. In this case, increasing the amount of oxygen can help improve gas exchange. On the other hand, if the V/Q ratio is increased, it indicates a decrease in perfusion compared to ventilation. In this scenario, increasing the amount of oxygen may not be as effective in improving gas exchange.
Learn more about Lung problem