Pharmacist Use of ECG to Inform Drug Therapy Decisions for Patients Receiving QT Prolonging Medications

The pharmacist will record a 30 second rhythm strip from patients using the KardiaMobile device and calculate the QTc interval using the Bazett calculation formula. The pharmacist will discuss the result with the patient and if necessary, will contact the prescriber to effect a medication change. If the QTc interval is greater than the 99th percentile, (470 ms for males, 480 ms for females) the pharmacist must contact the prescriber. The pharmacist will record any prescription changes which resulted from the intervention and the prescriber response. The pharmacist will email the rhythm strip (with study participation number) to a secure email at the Northeast Iowa Family Practice Center (NEIFPC). Rhythm strips will be archived for future potential research evaluation in a secure, electronic file.