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Venturi Mask
A medical device used to deliver a specific concentration of oxygen to patients by mixing oxygen with inhaled air.
Chronic Obstructive Pulmonary Disease
A group of progressive lung diseases, including emphysema and chronic bronchitis, characterized by long-term breathing problems and poor airflow.
Tuberculin Skin Test
A diagnostic method to determine if a person has been exposed to tuberculosis bacteria, involving the injection of a small amount of tuberculin into the skin.
Induration
A medical term for an area of hardened tissue, typically resulting from inflammation, infection, or the reaction to a skin test.
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