Differentiation of a Pleural Rub from Coarse Crepitations
Differentiation of a pleural rub from coarse crepitations can be quite
difficult, the differentiating features are:
¨
A rub is usually localised
§
A pleural rub is heard superficially whilst crepitations are
deeper
©
A pleural rub is usually louder
ª
A pleural rub is usually painful
¨
A rub is heard in both inspiration and expiration
§
A pleural rub is accentuated by increasing pressure with the
stethoscope
©
A pleural rub does not change with coughing whilst crepitations
may change
