Nebulized 3% Hypertonic Saline in the Treatment of Acute Bronchiolitis in the Emergency Department

Randomly assigned to one of three groups * Group I : nebulized epinephrine + 0.9% saline + placebo * Group II : nebulized epinephrine + 3% saline + placebo * Group III : nebulized epinephrine + 0.9% saline + dexamethasone Group I received two treatments of nebulized epinephrine mixed 0.9% saline and a total of six oral doses of placebo, group II received nebulized epinephrine mixed 3% saline and oral placebo, and group III received nebulized epinephrine mixed 0.9% saline and oral dexamethasone. The primary outcome is hospital admission within 7 days after the day of enrollment