From: Risk factors for recurrent wheezing after bronchiolitis in infants: 2-year follow up in China
 | 0 | 1 | 2 | 3 |
---|---|---|---|---|
R (Times / min) | < 30 | 31–45 | 46–60 | > 60 |
Wheezing | No | Only can be heard at the end of expiration by stethoscope | Be heard during expiration with or without stethoscope | Be heard during inspiration and expiration without stethoscope |
Tri-retraction sign | No | Only rib gap depression | Trachea depression | Nasal flaring |
Mental condition | Normal | Â | Â | Irritability, drowsiness and decreased feeding |