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Can a blood test determine if a person has depression?

Donna Hill Howes, RN
Family Medicine
A blood test cannot be used to diagnose depression. But your doctor may take a sample of blood for testing to rule out other illnesses that can cause symptoms similar to those of depression.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.