 The patient is to be strictly kept on bi-level PAP of 15 I-PAP/E-PAP of 5 cm and FIO2 of 35% for most of the times during the day. 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. On admission her potassium had risen slightly to 5.5, and hence her ACE inhibitor had to be discontinued. We may restart it again at a later date once her blood pressure control is better if required.