The diagnosis of asthma in children what is the criterion?

[1] asthma in infants aged "three years, the authors repeatedly asthma may be scorecard for diagnosis. Scorecard approach : recurrent breathing ≥ 3 times, 3 pm; Pulmonary there wheezing, 2 pm; Asthmatic symptoms of sudden attack, a breakdown; any other specific history, a breakdown; 12 relatives have asthma history, a breakdown. Score : score ≥ 5 pm diagnosis of asthma in infants; 2nd asthma attack, or score ≤ 4 had an initial diagnosis of asthma in infants (asthmatic bronchitis). If the lungs wheezing were to do the following experiment : ① 0.1% epinephrine. 0.01ml/kg each injection, 15-20min after the bell to ease breathing or if wheezing obvious reduction plus 2 pm; ② be salbutamol aerosol or water aerosol inhalation, or breathing space observation wheezing change, As can be reduced significantly increase two hours. [2] 3-year-old children over the basis for the diagnosis of asthma : ① breathing repeatedly attack (or back with some allergenic or stimulate factors); ② attack appeared lungs wheezing; ③ antiasthmatic drug therapy produce. Suspect cases may choose to 0.1% epinephrine injection, the maximum amount not exceeding 0.3 / time, or salbutamol aerosol spray inhalation solution or observed 15 minutes, a marked effect contributes to the diagnosis. [3] cough variant asthma also known as allergic cough. Diagnosis based on : ① continuous or repeated coughing attack "one, accompanied at night or early morning paroxysmal cough, sputum less campaign after aggravating; ② No clinical signs of infection, or through long-term antibiotic therapy; ③ using bronchodilators can ease the coughing attack, the disease is to diagnose the basic conditions; ④ personal or family history of allergies. Airway reactivity determination of allergenic testing for diagnosis.