| Mild |
- Mild/minimal work of breathing
- Respiratory rate: normal for age
- Wheeze: intermittent expiratory to none
- No prolonged expiration
- Cough: full, loose and productive
- SpO2 ≥ 90% on FIO2 21%
|
| Moderate |
- Moderate work of breathing, accessory muscle use, and nasal flaring
- Respiratory rate: moderately increased for age
- Wheeze: moderate persistent expiratory
- No prolonged expiration
- Cough: loose and productive
- Management of FiO2 and SpO2 for SpO2 < 90%
|
| Severe |
- Significant work of breathing, accessory muscle use, and nasal flaring
- Respiratory rate: significantly increased for age
- Wheeze: absent, severe inspiratory and/or expiratory
- Aeration: decreased throughout lung fields
- Prolonged expiration
- Cough: weak or absent
- Management of FiO2 and SpO2 for SpO2 < 90%
|