Hey Hun, I had Linda yesterday. Went cold turkey for a week and half! They do ask if you’ve smoked, I was honest with her and told her only quick for a week and a half rather than two. They test your oxygen levels, mine was 100% so she put me down as a non smoker, I know it’s really really difficult but try not to, you don’t want to be sent home after how far you’ve already come! I think if your oxygen levels are low they will then test you, xx