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J.J, Ward, MEd, RRT in Respiratory Care


Crackles (b)

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These late inspiratory fine crackles were recorded over the right posterior lower lung of a 55 year old woman with rheumatoid lung disease.

The respirosonogram provides a visual representation of the content of the respiratory sound recording. Time is shown on the horizontal and frequency on the vertical axis. Sound intensity is indicated on a color scale, ranging from red (loud) over yellow and light green (medium) to dark green and gray (low). Calibrated air flow is displayed at the top (I = inspiration, above zero; E = expiration, below zero).