Which sequence correctly verifies endotracheal tube placement?

Which sequence correctly verifies endotracheal tube placement?

• A. Attach CO2 detector; chest rises and falls; auscultate epigastrum and bilateral lungs; after 5-6 breaths observe CO2; skin color improves.
• B. Chest x-ray is performed immediately; no auscultation.
• C. Visualize the tube with direct laryngoscopy only.
• D. Rely on SpO2 alone to confirm.

Answer: (A)

Rapid and reliable confirmation of endotracheal tube placement comes from using a CO2 detector or capnography together with bedside clinical assessment. The CO2 detector provides immediate proof that the tube is in the trachea, because exhaled CO2 will be present only if the tube isn’t in the esophagus. Observing chest rise during ventilation supports that air is reaching the lungs, while listening with a stethoscope over both lungs ensures bilateral ventilation and checking the epigastric area helps rule out gastric placement. After a few breaths, seeing a CO2 signal or waveform confirms ongoing tracheal placement rather than a misplaced tube. While improved skin color can indicate better oxygenation, it isn’t a reliable standalone proof of correct tube placement. Relying on SpO2 alone can be misleading, and chest x-ray, though helpful, is not an immediate confirmation in an emergency. Visualizing the tube with laryngoscopy confirms passage through the cords but does not by itself guarantee continued correct placement.

Rapid and reliable confirmation of endotracheal tube placement comes from using a CO2 detector or capnography together with bedside clinical assessment. The CO2 detector provides immediate proof that the tube is in the trachea, because exhaled CO2 will be present only if the tube isn’t in the esophagus. Observing chest rise during ventilation supports that air is reaching the lungs, while listening with a stethoscope over both lungs ensures bilateral ventilation and checking the epigastric area helps rule out gastric placement.

After a few breaths, seeing a CO2 signal or waveform confirms ongoing tracheal placement rather than a misplaced tube. While improved skin color can indicate better oxygenation, it isn’t a reliable standalone proof of correct tube placement. Relying on SpO2 alone can be misleading, and chest x-ray, though helpful, is not an immediate confirmation in an emergency. Visualizing the tube with laryngoscopy confirms passage through the cords but does not by itself guarantee continued correct placement.