Table 1 Clinical score

Respiratory rate

<50

50 - 60

61-69

>70

Dyspnea

Normal feeding

Difficulty feeding

2 of the following: difficulty feeding, pallor, perioral cyanosis OR agitation.

2 of the following: cyanosis, stopped feeding OR drowsiness.

Use of accessory respiratory muscles

None

Subcostal or intercostal retractions

2 of the following: subcostal, intercostal, substernal retractions OR nasal flaring

3 of the following: subcostal, intercostal, substernal, suprasternal, supraclavicular retractions OR nasal flaring

Auscultation

Normal breathing

End-expiratory wheeze only OR crackles.

Expiratory wheeze and/or crackles

Inspiratory and expiratory wheeze OR diminished breath sounds OR both