Wired for What?

As I got out of the shower (that I wasn’t actually supposed to take) today, I was drying off only to discover multiple little metal sensors stuck to my back. I suppose that these were part of the system that monitored my heart during my surgery. But EWWWW! What a strange feeling to find them still stuck to my body 2 days later! I had to wonder why they didn’t clean me up better after my surgery. Why was I still wired for what?