This document provides an overview of examining the lungs and thorax. It discusses taking a health history, including common symptoms like chest pain, shortness of breath, coughing, and blood-streaked sputum. It describes examining the chest through inspection, palpation, percussion, and auscultation. Specific techniques are outlined for examining the anterior and posterior chest in sitting and supine positions. Breath sounds and their abnormalities are also discussed. The document is intended as an educational reference for nurses on assessing pulmonary health.