What are the types of percussion notes?
|Percussion Note||Common Causes|
|Dull *||Pleural effusion, presence of hepatic tissue, consolidation, pleural thickening||Solid organ or fluid|
|Resonant||Normal lung||Aerated lung tissue|
Hyperinflated lung tissue or air in the pleural space
* Some authors refer to stony-dull as a separate percussion note. We have not included this here.