Related Experiment Video
Updated: Aug 16, 2026

Conducting Respiratory Oscillometry in an Outpatient Setting
Published on: April 8, 2022
The PEP respiratory monitor: a validation study
C N Brookes1, J D Whittaker, C Moulton
1Salford Royal Hospitals NHS Trust, Salford, UK.
Abstract:
The search for a reliable and accurate respiratory rate monitor for use in non-intubated patients has proved to be a long and fruitless one. A new device fulfilling the criteria for such a monitor has recently been described. The pyroelectric polymer (PEP) device is safe, non-invasive, and cheap. In this study the PEP device, transthoracic impedance, and standard observer counting were all compared with the existing gold standard of capnography in 12 healthy adult volunteers. Using a standard statistical technique it was shown that the PEP device performed as well as a capnograph and was more accurate than the other currently available methods of monitoring respiratory rate.
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