Foodborne disease outbreaks caused by Bacillus cereus, Clostridium perfringens, and Staphylococcus aureus--United States, 1998-2008. Bennett SD(1), Walsh KA, Gould LH. Author information: (1)Centers for Disease Control and Prevention, 1600 Clifton Rd, MS C-09, Atlanta, GA 30333, USA. iyk3@cdc.gov.
1 Rales: Small clicking, bubbling, or rattling sounds in the lungs. 2  They are heard when a person breathes in (inhales). 3  They are believed to occur when air opens closed air spaces. 4  Rales can be further described as moist, dry, fine, and coarse. 5  Rhonchi: Sounds that resemble snoring.
Lung sounds are auscultated for sounds such as wheezes, rhonchi and crackles (rales). Some physicians auscultate voiced sounds, which can indicate specific areas of the lungs which are consolidated. Our auscultation guide provides quick access to normal, voiced and adventitious lung sounds with audio recordings, listening tips and a waveforms.