Capnography
Non-invasive monitoring of carbon dioxide levels and respiratory patterns
What is Capnography?
Capnography is a non-invasive monitoring technique that measures and displays the concentration of carbon dioxide in exhaled breath. It provides real-time information about respiratory efficiency and metabolic status through waveform analysis.
This test is widely used in critical care settings, anesthesia, and pulmonary diagnostics to evaluate ventilation adequacy and detect respiratory abnormalities.
Types of Capnography
Mainstream Capnography
Direct measurement at airway interface
Sidestream Capnography
Sampling through nasal cannula or mask
Waveform Analysis
Visual representation of CO2 levels over time
Clinical Applications
- Critically ill patient monitoring
- Anesthesia depth monitoring
- Ventilator weaning assessment
- COPD and respiratory assessment
- Pulmonary embolism detection
- Efficacy of respiratory therapy
Capnography Procedure
Quick Setup
Sensor placed at airway in minutes
Continuous Monitoring
Real-time waveform and numerical display
Benefits of Capnography
Non-invasive
Safe monitoring without blood draws
Early Detection
Detects respiratory changes before other signs appear
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