She may be put on nasal cannula 2 to 3 liters per minute with an O2 saturation of 90-92% at meal times only, and that is to be limited to 1-2 hours every meal. 
She may be put on nasal cannula 2 to 3 liters per minute with an O2 saturation of 90 - 92 % at meal times only , and that is to be limited to 1 - 2 hours every meal .