Wheezing
When a patient has bronchitis, the airway tubes are filled with mucus, which can either thick or thin depending on the cause. Whenever air passes through these narrow tubes, a whistling sound comes while the patient breathes which is called a wheeze. This symptom should be examined carefully with a stethoscope because there are different variations depending on different types of lung disease. It is very important to go to your doctor if your child starts breathing with a wheezing sound because asthma attacks are another possible diagnosis for this type of sound.