Accuracy of community-based blood pressure devices versus validated self-use devices.
2015
Abstract Objectives To examine the accuracy of a community-based blood pressure monitor (CBPM) versus a validated automatic blood pressure monitor (ABPM); to assess providers' recommendations regarding use of CBPMs; and to assess if potentially inaccurate blood pressure readings may result in treatment changes. Methods A convenience sample of 50 participants was recruited and met criteria for a randomized, controlled, crossover design trial in a community pharmacy in January and February 2013. Participants completed a screening survey and were educated about how a pharmacist can assist in achieving blood pressure control. Blood pressure measurements were performed using a CBPM and a validated ABPM. Participants were asked to identify their primary care provider (PCP); if identified, the PCP was faxed a survey to complete. The difference in blood pressure readings between the two monitors was examined and PCP survey responses were examined. Results There were significant differences between the means obtained from the two different monitors for systolic blood pressure ( P = 0.006) and diastolic blood pressure ( P = 0.012) measurements. Due to differences between readings, recommendations for change in treatment (or initiation of blood pressure medication) may have been different for 38% of participants. PCPs indicated that they often recommend CBPMs for self-monitoring. Conclusion Patients, pharmacists, and providers should be aware of potential inaccuracies when using a CBPM for self-monitoring.
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