Colonoscopy and Afib after PFA

I was recently diagnosed with IMO after months of Diltaizem and constipation. I just started Rifaxamen and Neomycin, which end the day before my colonoscopy prep. My cardiologist cleared me for the procedure and I had an ablation in Jan. I was just nervous about the prep and it causing electrolyte shifts and afib? I haven’t been in afib since before my ablation and wanted to see if anyone had similar experience?