A 2-year-old boy presents with a barking cough, hoarse voice and inspiratory stridor at rest. He is agitated but maintains oxygen saturations of 94% on room air. What is the most appropriate initial treatment?AGive oral prednisolone and observe; nebulised adrenaline is not indicatedBAdminister nebulised adrenaline and oral dexamethasone, and monitor closelyCStart broad-spectrum intravenous antibioticsDPerform immediate intubation in all casesEUse salbutamol nebulisers as first-line therapyCheck my answer