A patient who has a history of bipolar disorder recently underwent orthopedic surgery and was ...

A patient who has a history of bipolar disorder recently underwent orthopedic surgery and was discharged to return home.
 
  When visited by the home care nurse, the nurse documented the following: slow and soft speech; sad facial expression; and patient crying when describing extreme fatigue, low mood, and the feeling that he will never get well. He has refused to bathe and perform ADLs for several days. Which nursing diagnosis would be appropriate?
  a. Self-care deficit secondary to possible depression
  b. Situational low self-esteem related to immobility
  c. Deficient knowledge related to depression and surgery
  d. Disturbed thought processes related to bipolar disorder