Carbon dioxide levels in the body are measured using two different methods: end-tidal carbon dioxide (EtCO2) and partial pressure of carbon dioxide in arterial blood (PaCO2).
- Noninvasively, EtCO2 is measured via exhaled breath, typically capnography, whereas PaCO2 is measured via arterial blood gas (ABG) analysis, requiring a blood sample.
Here are some benefits of EtCO2 over PaCO2:
- Noninvasive Measurement
- Rapid Results
- Continuous Monitoring
- Detection of Ventilation Changes
- Less risk and discomfort
- Useful in CPR
- Trend Monitoring
- Availability in Various Settings
EtCO2 outweighs PaCO2 in many situations and helps critical care specialists, Intensivists and Anesthesiologists to quickly and effectively monitor/diagnose their patients.
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