I was going to say you could do a mini curve (every 3 hours), but I wonder if the 450 is from rebound and not a fur shot? I don't know that a 450 could be possible if the cat is on a low carb diet and got a fur shot. High carb yes, but isn't Boo eating a good low carb, raw diet? So, because of that, a full curve would be good to try and ID a nadir OR a high flat situation.