When suctioning a patient through tracheostomy tube, the nurse should be careful not to occlude the Y port when inserting the suction catheter, because this would do which of the following?

1. A

   Prevent suctioning from occurring

2. B

   Cause trauma to the tracheal mucosa

3. C

   Break the sterile technique

4. D

   Suction out all of the CO2

Appeared in: RAK Nursing Officer - 2019

Explanation

• Occluding the Y-port on a suction catheter activates the negative pressure (suction).
• Applying suction while advancing the catheter causes the tip to drag against and scrape the delicate tracheal lining.
• This action directly leads to mucosal trauma, which can cause bleeding, inflammation, and edema.
• The correct procedure is to insert the catheter without suction and only apply suction intermittently during withdrawal to protect the airway.

Why Other Options Were Wrong

• Option A: This is the opposite of what happens. Occluding the Y-port completes the vacuum circuit and initiates suction.
• Option C: Sterile technique is related to the handling of the catheter and gloves, not the timing of suction application. Placing a sterile-gloved thumb on the Y-port does not break sterility.
• Option D: This is a physiological exaggeration. While suctioning does remove some air from the lungs, it cannot remove 'all' of the CO₂. The primary and most immediate risk related to gas exchange during suctioning is hypoxemia (low oxygen), not profound acapnia (low CO₂).

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Safe Tracheal Suctioning Procedure to guide bedside assessment, documentation, and the next nursing action.
• Proper suctioning technique is a fundamental nursing skill critical for patient safety in those with artificial airways.
• Incorrect technique can lead to serious complications, including tracheal bleeding, infection (from damaged mucosa), bronchospasm, and severe hypoxemia, which can cause cardiac arrhythmias or arrest.
• What if? If the nurse notices bloody secretions after a suction pass, they should immediately stop, assess the patient, reduce the suction pressure, and ensure suction is only applied during withdrawal. The frequency of suctioning should also be re-evaluated, as too-frequent suctioning can also cause trauma.

How to Approach the Question

• First, identify the key action in the question: occluding the Y-port during insertion of the suction catheter.
• Recall the function of the Y-port. It is a thumb port that acts as a valve. Covering it applies suction; leaving it open prevents suction.
• Analyze the consequence of applying suction while moving the catheter into the airway. The airway lining (mucosa) is very delicate.
• Visualize a vacuum cleaner nozzle being dragged across a delicate surface. This will cause abrasion and damage. The same principle applies here, leading to mucosal trauma.
• Evaluate the other options. 'Preventing suction' is the opposite of what happens. 'Breaking sterile technique' is a separate procedural error. 'Suctioning out all CO₂' is a physiological impossibility and misidentifies the primary risk (hypoxia).

Concept Tested & Keywords

• Concept Tested: Safe Tracheal Suctioning Procedure
• Stem keywords: suctioning, tracheostomy tube, Y port, inserting catheter
• Lead-in keywords: do which of the following
• Negative lead-in flag: false

Question ID

QVNqcObnPNtFyQlvIclW1D

Copy ID

Reference Book

E6 Nursing Fundamentals Potter Perry 12e Part 5 pp. 16-18, 1, 19-21