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Hi there,This is Dr Basu, experienced Internal Medicine Specialist.I am here to address your concerns and provide great service.
I understand your concern. Yes UTI can trigger fib. Infection increases stress on your heart and heart tends to beat faster than usual. This can trigger atrial fibrillation sometimes. This can be temporary. However, metoprolol should be continued to control your heart rate and prevent heart failure. Best wishes,It was my pleasure to help you today.If I have answered all your questions, Please rate my response Excellent (click on the 5th star on top).Please bookmark my profile for fast, reliable authentic answers!This is the link to my profile:http://www.justanswer.com/medical/expert-mysticdoc/