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Fast and Accurate Exhaled Breath Ammonia Measurement
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Fast and Accurate Exhaled Breath Ammonia Measurement

Fast and Accurate Exhaled Breath Ammonia Measurement

DOI:
10.3791/51658-v

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06:27 min

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June 11, 2014

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, , ,
1Internal Medicine,St. Luke’s University Hospital, 2Internal Medicine,Johns Hopkins School of Medicine, 3Bloomberg School of Public Health,Johns Hopkins University

Chapters

  • 00:05Title
  • 01:12Preparation of Instruments
  • 02:43Breath Sample Collection and Measurement
  • 03:53Illustrating the Effects of Mouth Rinse, pH, and Tubing Temperatures on Breath Ammonia
  • 05:03Results: Exhaled Breath Ammonia Measurements
  • 06:01Conclusion

Summary

Automatic Translation

Automatic Translation

Ammonia is an important physiologic metabolite relevant to various disease and wellness states. It is also a difficult molecule to measure in breath, which demands particular precautions be taken to obtain accurate results. Not all factors influencing ammonia are known, but progress can be difficult without accounting for these factors.

Tags

Keywords: Exhaled Breath AmmoniaQuartz Enhanced Photoacoustic Spectroscopy (QEPAS)Quantum Cascade LaserBreath SamplingMouth PressureCarbon DioxideTemperature ControlBreath EffortReal-time MeasurementInfluencing FactorsMouth RinseOral PHTemperatureBreathing ModeClinical StudiesMeasurement ReliabilityCostPortability

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