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How is tuberculosis diagnosed?

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If your doctor thinks you may have tuberculosis, they'll listen to your lungs while you breathe. They'll also check your lymph nodes for swelling. Then they'll do a skin or blood test.

From: TB (Tuberculosis) Tests WebMD Medical Reference

SOURCES:

Mayo Clinic: "Tuberculosis - Diagnosis."

CDC: "Testing for TB Infection," "Diagnosis of Tuberculosis Disease,"  "The Difference Between Latent TB Infection and TB Disease."

UpToDate: "Patient education: Tuberculosis (Beyond the Basics)."

National Jewish Health: "Tuberculosis: Diagnosis."

American Lung Association: "Diagnosing and Treating Tuberculosis."

Reviewed by Laura J. Martin on September 15, 2019

SOURCES:

Mayo Clinic: "Tuberculosis - Diagnosis."

CDC: "Testing for TB Infection," "Diagnosis of Tuberculosis Disease,"  "The Difference Between Latent TB Infection and TB Disease."

UpToDate: "Patient education: Tuberculosis (Beyond the Basics)."

National Jewish Health: "Tuberculosis: Diagnosis."

American Lung Association: "Diagnosing and Treating Tuberculosis."

Reviewed by Laura J. Martin on September 15, 2019

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How can a TB skin test help diagnose tuberculosis?

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