6 puffs of ventolin via spacer is equal to how much ventolin via nebuliser?
A nebuliser dose of ventolin is either 2.5mg or 5mg in 2.5 mls
saline. I assume you mean a 100mcg per puff inhaler, which would
obvs be 600mcg in 6 puffs. A 2.5mg neb is worth 25 puffs of a
100mcg inhaler, so 6 puffs via spacer is about a quarter of a neb
dose (i.e. not that much!)