This document outlines the steps for assessing the thorax and lungs, including gathering equipment, explaining the procedure to the client, inspecting the chest wall, palpating for tenderness and masses, percussing the chest, and auscultating breath and adventitious sounds. The assessment includes inspection, palpation, percussion, and auscultation of both the posterior and anterior chest while comparing both sides. Findings are then analyzed to formulate nursing diagnoses and determine if any referrals are necessary.