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.
What Are Adventitious Lung Sounds? Adventitious lung sounds are abnormal sounds that are heard when auscultating a patient's lungs and airways. These sounds include abnormal sounds such as fine and coarse crackles (crackles are also called rales), wheezes (sometimes called rhonchi), pleural rubs and stridor.