Key features of depression and its management in general practice.

 
"..I'm not like I was before.."

Which of the following statements are true of Ellen's presentation?
1. Ellen fulfills the criteria of major depressive illness.
2. Ellen's history of gradual onset over several weeks or months is characteristic of major depression.
3. A past history of depression is an essential diagnostic criteria for major depression.
4. A consecutive generational family history, such as occurs in Ellen's history, is an essential diagnostic criteria for major depression.
5. Major depression is more common in men than women.

1. Ellen fulfils the criteria of major depressive illness.

Author's answer: True

The DSM-IV classification divides depression into three categories: 1) major depressive illness 2) dysthymia, and 3) depression not otherwise classified.

The diagnosis of major depressive disorder attempts to set a minimal threshold for significant depression based on a specified number of items and their temporal patterns. 

The DSM-IV criteria requires the presence of
1) a dysphoric mood or decreased interest in usual activities and
2) at least four additional classic depressive signs and symptoms, that is: loss of interest or pleasure, significant appetite loss or gain, weight loss or gain, insomnia or hypersomnia, psychomotor agitation or retardation, fatigue or loss of energy, feelings of worthlessness or excessive guilt, impaired thinking or concentration, indecisiveness, or suicidal thoughts,
3) which must be sustained for at least 2 weeks, and
4) cannot be explained by another process known to cause depressive symptoms. 

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