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NCLEX-RN Exam Practice

Category - Respiratory

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Which diagnostic test would confirm a diagnosis of tuberculosis?

Bronchoscopy
Chest x-ray
Sputum culture
Tuberculin skin test

Explanation

Answer: C - A sputum culture would confirm the diagnosis of tuberculosis. The culture would isolate the bacterium, Mycobacterium tuberculosis. A tuberculin skin test leads to a presumptive diagnosis. A chest x-ray would show evidence of graunulomatous disease.

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