Wheezing is a high-pitched whistling sound during breathing. It occurs when air flows through narrowed breathing tubes.
Sibilant rhonchi
Wheezing is a sign that a person may be having breathing problems. The sound of wheezing is most obvious when breathing out (exhaling), but may be heard when taking a breath (inhaling).
Wheezing most often comes from the small breathing tubes (bronchial tubes) deep in the chest, but it may be due to a blockage in larger...
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Source: ADAM Encyclopedia
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