The colorimetric CO₂ detector is a single use colour metric pH-sensitive indicator used to verify correct endotracheal tube (ETT) placement. It provides a simple visual method to assess exhaled CO₂ during airway management.
The detector is inserted between the outer end of the ETT and the manual ventilation device
The Pedi-Cap colour changes from purple, to tan, to yellow which verifies that CO₂ is being exhaled, and returns to purple during inspiration of gas that is free of CO₂
The device responds to exhaled CO₂ with a colour change from purple to yellow after six (6) full breaths.
If still purple ETT may be in the oesophagus or
Insufficient breaths are being delivered
Insufficient tidal volumes are being delivered
The infant is in full circulatory arrest (CO₂ detector should show tan or yellow if effective Cardiopulmonary Resuscitation (CPR) is being delivered)
The presence of a large air leak.
ALERT: The colorimetric CO₂ detector may provide constant visual feedback for up to 2 hours e.g. for transport
Oesophageal or Tracheal with absent pulmonary blood flow
There are two different types of CO2 detectors available for use see illustrations below.
Mini stat CO2 detector
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