Fast Five Quiz: Are You Prepared to Confront Seasonal Affective Disorder?

Stephen Soreff, MD

November 23, 2016

No diagnostic laboratory tests are available, but focused laboratory studies may be useful to exclude potential medical illnesses. These laboratory studies include the following:

Complete blood cell (CBC) count
Thyroid-stimulating hormone
Vitamin B₁₂
Rapid plasma reagin (RPR)
HIV test
Electrolytes, including calcium, phosphate, and magnesium levels
Blood urea nitrogen (BUN) and creatinine
Liver function tests (LFTs)
Blood alcohol level
Blood and urine toxicology screen
Arterial blood gas (ABG)
Dexamethasone suppression test (Cushing disease, but also positive in depression)
Cosyntropin (ACTH) stimulation test (Addison disease)

For more on the workup of depression, read here.

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Any views expressed above are the author's own and do not necessarily reflect the views of WebMD or Medscape.

Cite this: Stephen Soreff. Fast Five Quiz: Are You Prepared to Confront Seasonal Affective Disorder? - Medscape - Nov 23, 2016.

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