After reviewing the anatomical levels of the respiratory tract and the mechanics of respiration we’ll spend some time looking at the postural manifestations of dyspnoea and how we use these to assess the severity of respiratory distress. Then we’ll cover how you can sometimes use the respiratory pattern to localise the anatomical level of the respiratory tract that is affected. Next we’ll discuss pulmonary auscultation and lung sounds and finally we’ll skip through the different ways you can administer supplemental oxygen.