I thought we were told to use something like A&D ointment, but I'm pretty sure I read in the instructions not to use petroleum jelly, which is essentially what A&D is.
Ewww...just came across a gross poll on rectal thermometers while searching for what to use as a lubricant. So far, I've found most websites say petroleum jelly. I'll have to look at those directions again to double-check them!
Re: What do you use to lubricate a rectal thermometer?
I have no idea! Off to google....