2.1 Wheezes also known as sibilant wheezes
• High‐pitched musical noises that usually are louder
during expiration
• Caused by high‐velocity air traveling through
narrowed airways
• May occur because of asthma and other constrictive
diseases and congestive heart failure
• When occurs in a localized area, suspect foreign body
obstruction,
tumor, or mucous plug
• Classified as mild, moderate, or severe
• Should be described as occurring on inspiration or
expiration
or both