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Respiratory Therapist

Category - Patient Evaluations and Recommendations

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Where should the distal tip of an endotracheal tube be observed on a chest x-ray?

1-2 cm below carina
1-2 cm above carina
1-3 cm beyond the main pulmonary artery
Less than 1 cm beyond the main pulmonary artery

Explanation

Answer: B - The endotracheal tube should be positioned at 1-2 cm above the carina.

If the distal tip is below the carina, the patient risks intubation of the right main bronchus.

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