For Accurate Peak Flow Measurements: Show, Don’t Tell

Patients who are told how to breatheinto a peak flow meter often try formaximum volume rather than flow.Repeated attempts to achieve correcttechnique can leave patients fatiguedand produce inaccurate measurements.For optimal results, use a separatepeak flow meter to demonstratethe proper method of inhaling deeplyand then exhaling forcefully.
-LT Terrence Stone, PA-C
  Chesapeake, Va