184 definitions of MSA. Meaning of MSA. What does MSA stand for? MSA abbreviation. Define MSA at AcronymFinder.com
The symptoms of wheezing include a musical or whistling sound and labored breathing, particularly when exhaling; sometimes they're accompanied by a feeling of tightening in the chest. You can hear wheezing more loudly if you plug your ears and exhale rapidly, or by using a stethoscope held at the neck or over the lungs.
Wheezing results from a narrowing of the airways and typically indicates some difficulty breathing.The narrowing of the airways can be caused by inflammation from asthma, an infection, an allergic reaction, or by a physical obstruction, such as a tumor or a foreign object that's been inhaled.The most common cause of recurrent wheezing is asthma. Possible causes of wheezing include: 1  Allergies.he narrowing of the airways can be caused by inflammation from asthma, an infection, an allergic reaction, or by a physical obstruction, such as a tumor or a foreign object that's been inhaled. The most common cause of recurrent wheezing is asthma.