I wanted to update this thread in case someone in the future has a similar question and comes across this thread. I walked into the SLC, UT USCIS and spoke with the guards. One of the guards went to speak with someone in the biometrics office and they gave me the okay. They didn't ask me for doctor's notes because the artificial heart that I carry around my waist is very obvious. I did not have any issues being let in even though I did not allow them to put me through the metal detector or the wand.

I simply went in to ask if I could do my biometrics in that office instead of the office in another state, they said yes and they even offered to get me in that same day to do the biometrics done ahead of time, which I did, so I do not have to go back in on the 5th when my appointment was set.

Thanks everyone.