Sometimes a site falls off (or gets pulled off) before it is time to start a new site. If the site falls off very early we just put on a new site and connect to the old tubing and cartridge. The result is that we might not get a full three days out of the second site before the pump runs out of insulin. If it is real close to the time that a new cartridge is due to be started then we start the new one. This results in some lost insulin. So my question is what do you do when a site falls off somewhere in the middle of the three day period when there is a moderate amount of insulin left in the pump? Do you switch the site only then change it again soon or do you change the whole set-up and lose lots of insulin? Is there some better option?