If Sqad is thinking the same way as I am, then no, they can't make sure that the apparatus is virus-free. They can, and should, clean it, but that does not make sure that it is virus-free.
The electrodes that attach to your skin are single use. The machine can be wiped down with alcohol and probably not used for a day or two. You should be safe
I agree with calmck, if you are worried a out the Co19 virus then skin to mouth transmission would be extremely unusual.
The electrodes wouldn't be the problem, but an organism free cuff might prove the only hazard relying. on previous cleanings by hospital staff.
Don't worry.
Bazile, I would be surprised if the monitors can be left a few days before re-issue. I have always had to return mine within 24 hours of issue because of the supply and demand situation. The recent shortage of such appointments may mean that some monitors have been sufficiently sterile but probably by now the wheels and cogs are gearing up again. All that said, I wouldn't worry over it. Hope it goes well for you.
I'm just coming yo the end of a 5 day heart monitoring with 3 electrodes .
Main problem - the adhesive pads that the electrodes are fitted to make me itch !!
Rosie, were you given any spare pads? If so I would swap them straightaway. They are supposed to be hypoallergenic but I had a terrible reaction to them.
Hope you get good results.