My tests so far were an in office EKG and 48 hour Holter monitor and neither showed anything. In desperation I bought a KardiaMobile to provide a strip of my tachycardia. My PA's response was a prescription for Metoprolol. My referral now is to an EP for the beginning of May 2025. Can you get a second opinion from Mayo Clinic about testing of possible physical causes BEFORE appearing in person for an appointment? I'm 131 miles from Jacksonville. My current Cardiac PA is no longer in my local medical group so I'm in limbo but my insurance does not require referrals.