HISTORY OF PRESENT ILLNESS: , This is a 61-year-old woman with a history of polyarteritis nodosa, mononeuritis multiplex involving the lower extremities, and severe sleep apnea returns in followup following an overnight sleep study, on CPAP and oxygen to evaluate her for difficulty in initiating and maintaining sleep. 
HISTORY OF PRESENT ILLNESS : , This is a 61 - year - old woman with a history of polyarteritis nodosa , mononeuritis multiplex involving the lower extremities , and severe sleep apnea returns in followup following an overnight sleep study , on CPAP and oxygen to evaluate her for difficulty in initiating and maintaining sleep .