Respiratory system diagnostic tests

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

In medicine, the respiratory examination is performed as part of a physical examination, or when a patient presents with a respiratory problem (dyspnea (shortness of breath), cough, chest pain) or a history that suggests a pathology of the lungs.

Respiratory system diagnostic tests

Sputum examination

• Appearance, color, presence of blood, and smell
  • Colorless (Bronchitis)
  • Green (pulmonary infection)
  • Red (carcinoma)
  • Frothy pink (pulmonary edema)
  • Black (pollutants)
• Order tests - Routine microscopy (gram and ZN stain), cytology, culture

Peak expiratory flow

• Maximal forced expiration through peak flow meter.
• Used to estimate airway caliber in COPD, and asthma.

External links

• Respiratory exam - University of Florida
• Exam of the chest - University of Florida
• Respiratory exam - Respiratory Exam
• Lung sounds online at Emory University School of Medicine