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Understanding Capnography: Monitoring Carbon Dioxide for Enhanced Patient Safety

This presentation by Jonna Bobeck, BSN, RN, CEN, explores the crucial role of capnography in monitoring ventilation and patient safety. Capnography provides real-time measurement of carbon dioxide (CO2) levels, offering a more accurate assessment than traditional methods. The discussion includes the physiology of capnography, methods for measuring CO2, and comparisons with pulse oximetry. It highlights the significance of understanding normal and abnormal capnography values, including indications for its use in clinical settings, particularly for endotracheal (ET) placement.

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Understanding Capnography: Monitoring Carbon Dioxide for Enhanced Patient Safety

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Presentation Transcript

  1. Monitoring Carbon DioxidePart I Presented by: Jonna Bobeck BSN, RN, CEN

  2. Introduction • Capnography: the vital sign of ventilation • Innovative technology • Growing recognition of safety advantages • Continuous real time measurement • More accurate than traditional methods

  3. Physiology of Capnography • End of respiration • CO2-free gases • V/Q ratio • Respiratory dead space • CO2 curve

  4. Methods for Measuring CO2 • Mainstream • Sidestream • Infrared measurement

  5. Definitions • Capnography • Capnometer • Capnogram

  6. Oxygenation vs. Ventilation • Oxygenation • Gas exchange • Ventilation

  7. Capnography vs. Pulse Oximetry

  8. Circulation and Metabolism • Indirect measurement

  9. Normal Capnography Values • 35-45 mm Hg • Cautions

  10. Abnormal Values and Waveform • Hyperventilation/hypocapnia • Hypoventilation/hypercarbia • Waveforms

  11. B. What is the Problem?

  12. F. What is the Problem?

  13. . What is the Problem

  14. Indications: Monitoring Ventilation

  15. Indications: ET Placement

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