Always Know

Parts of the mediastinum?

trachea, esophagus, thymus gland, heart and great vessels

3 Reasons to perform a CXR upright?

demonstrate air-fluid levelsfully aerate the lungsprevent engorgement & hyperemia of heart and great vessels

Pneumothorax

free air in the pleural cavity

Emphysema

alveoli distended due to loss of elasticity