Figure 1From: Heliox improves pulmonary mechanics in a pediatric porcine model of induced severe bronchospasm and independent lung mechanical ventilationTimeline for study. Following documentation of severebronchospasm, lungs were randomized to receive either a helium-oxygen gasmixture (heliox) or a nitrogen-oxygen gas mixture (nitrox). The order in whicheach lung received pulmonary function tests (PFTs) was also randomized.Back to article page