Acute bronchiolitis often has these symptoms

As for bronchiolitis, it is mainly a respiratory tract infection. When suffering from this disease, its symptoms are divided into many types, and this disease generally occurs in children. Children themselves will not express their symptoms, so parents should understand what are the symptoms of acute bronchiolitis?

Children often experience rapid breathing, tachycardia, and prolonged exhalation. Infants and young children are prone to wheezing and crackles, which may be accompanied by nasal flaring and chest retraction. The disease has an acute onset, with rapid onset of increased breathing and coughing and wheezing within 1 to 3 days, accompanied by irritability, vomiting, and loss of appetite. Upper respiratory tract catarrhal symptoms and cough are often precursors to bronchiolitis attacks. The prodromal period often includes mild fever lasting 1 to 7 days. When the lower respiratory tract is affected, severe cough and high fever may occur.

Cough is a prominent symptom of bronchiolitis, which starts with a paroxysmal dry cough and is later accompanied by sputum, mostly white and sticky sputum. At the same time, there are varying degrees of wheezing and shortness of breath. Compared with common pneumonia, the symptoms of wheezing and shortness of breath are more severe and appear earlier. During an attack, breathing is shallow and rapid, accompanied by expiratory wheezing, and the respiratory rate reaches 60 to 80 times per minute or faster. Some patients suffer from dehydration and acidosis due to hyperventilation and inadequate fluid intake. In severe cases of hypoxia, signs of encephalopathy such as confusion, convulsions, and coma may occur, and cyanosis may occur in severe hypoxemia.

Some children may experience vomiting and diarrhea, but they are generally not serious. Lung examination reveals clear percussion sounds, decreased breath sounds on auscultation, and a full range of wheezing or whistling sounds. Fine moist rales may be heard when the wheezing is relieved. Most patients have obvious "three-depression sign", nasal flaring, irritability and cyanosis. Heart failure is rare. As the disease progresses, tachycardia becomes a prominent symptom, sometimes even though the body temperature has returned to normal. Auscultation is highly variable, with wheezing with or without crackles. Increased dyspnea and a corresponding decrease in positive lung auscultation findings suggest worsening obstruction and impending respiratory failure.