If I had that happen, I'd get them back on their normal schedule, make sure they have water, but I wouldn't give them nutes for a week, as they might be shocked and unable to absorb them. After a week, I'd reassess: if they look recovered, start nutes back up, and if they look like they're dying, I'd start looking for some Kleenex to cry into. But I doubt it comes to the Kleenex scenario!