For infant usage, which oxygen mask flow rate should be used?

When assessing the appropriate oxygen mask flow rate for infants, the low flow option is ideal. This is primarily because infants have a smaller physiological volume and different respiratory needs compared to adults. Using a low flow rate ensures that the oxygen delivered is sufficient to meet their needs without the risk of overwhelming their delicate respiratory systems.

High flow rates might provide excess oxygen that can lead to complications or discomfort, while moderate flow could also be unnecessary given the infant's specific requirements. The option of "no flow" is not suitable since infants do require some level of supplementary oxygen, especially in situations where they may have difficulty breathing or other respiratory challenges. Therefore, low flow is the most appropriate choice to ensure safety and effectiveness in delivering oxygen to infants.