1. Harsh, seal-like cough with inspiratory stridor at rest and subcostal retractions休息時出現刺耳的犬吠樣咳嗽、吸氣性喘鳴和肋下凹陷
2. High fever, muffled voice, drooling, and sitting upright with neck extended高燒、聲音低沉、流口水,並坐直且頸部伸展
3. Sudden distress while playing with small beads, unilateral wheeze, and asymmetric chest movement玩小珠子時突然出現窘迫、單側哮鳴和胸部不對稱運動
4. Expiratory wheeze, prolonged expiration, and hyperresonance on percussion呼氣性哮鳴、呼氣延長和叩診過度反響
5. Bilateral expiratory wheeze, coarse crackles, and recurrent nighttime cough雙側呼氣性哮鳴、粗囉音和夜間反覆咳嗽
6. Wheeze improves after albuterol but still has tachypnea and mild intercostal retractions使用沙丁胺醇後哮鳴改善,但仍有呼吸急促和輕度肋間凹陷
7. Cyanosis, decreasing respiratory effort, and drowsiness發紺、呼吸費力減輕和嗜睡