A 38-year-old woman with systemic lupus erythematosus but no evidence of nephritis comes to the office because of a 3-week history of mood swings with crying spells, irritability and insomnia. She is especially upset because she has been yelling at her children "over small, everyday things." One month ago she started
corticosteroid therapy. She is currently taking prednisone, 60 mg/day. Her other...