Which lab tests are performed in the workup of persistent depressive disorder (dysthymia)?

Updated: Oct 01, 2019
  • Author: Jerry L Halverson, MD; Chief Editor: David Bienenfeld, MD  more...
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The following lab tests may be carried out in the evaluation of patients with dysthymia:

  • Complete blood count (CBC) with a sedimentation rate

  • Thyroid function tests

  • Homocysteine and methylmalonic acid levels - These may be better for detecting folate/vitamin B-12–responsive dysthymia than would folate and vitamin B-12 levels themselves

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