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A patient has been placed on mechanical ventilation. Which of the following is an absolute contraindication to suctioning a patient through an endotracheal tube that is on mechanical ventilation?

1. Inadequate ventilation
2. Severe hypoxemia
3. Excessive secretions
4. Lack of a sterile field

Answer :

Final answer:

The lack of a sterile field is an absolute contraindication to suctioning a patient on mechanical ventilation.

Explanation:

An absolute contraindication to suctioning a patient through an endotracheal tube that is on mechanical ventilation is the lack of a sterile field. Maintaining a sterile field is crucial to prevent infection and complications during suctioning. Inadequate ventilation, severe hypoxemia, and excessive secretions are not absolute contraindications to suctioning, although they may require careful management and monitoring.

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