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Benefits of EtCO2 over PaCO2

Benefits of EtCO2 over PaCO2

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.
Fig 1. Capnography Animation (Ref.
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.

Click here to learn more interesting things about capnometers.

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Krunal Prajapati
Krunal Prajapati
Entrepreneur | Engineer | Blogger
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