Hi,I have a son (16 months) that has gone through a few sleep studies because he was initially sent home from the hospital on oxygen from respiratory distress during birth. He was taken off oxygen at 8 months old when we lived at an elevation of 5600 ft, but his latest sleep studies have shown that he has central sleep apnea events that cause is blood oxygen saturation levels to drop into the 80s (mostly upper but sometimes lower 80s).The reports say that he averages at 91 however.Being that we are now at an elevation of 7500 ft, is this desaturization into the 80s warrant oxygen supplementation again? He eats well, has good percentiles for height and weight, and seems overall very healthy.Thanks,Todd