After providing teaching about use of the CPAP machine, the nurse schedules Mr. Owens for a follow-up visit, and he is instructed to call if questions arise.
Mr. Owens returns to the clinic after using the CPAP machine at home for 3 months. He reports no improvement in his symptoms and appears disheveled and irritable. He describes sleeping only 3 or 4 hours each night and blames it on discomfort caused by the CPAP machine. The nurse records Mr. Owens' appearance and complaints.
Which information is considered subjective data by the nurse?
1) Mr. Owens' appearance
2) Mr. Owens' complaints
3) Mr. Owens' improvement in symptoms
4) Mr. Owens' use of the CPAP machine
