A patient receiving assist-control ventilation develops respiratory alkalosis on the latest arterial blood gas (ABG) results. What adjustment should the nurse anticipate the provider will make?

When performing mouth care or repositioning an oral endotracheal (ET) tube, the nurse must take specific precautions to prevent accidental tube dislodgement and ensure airway security. Coordination between caregivers and continuous assessment of tube placement and breath sounds are essential to detect displacement early and maintain effective ventilation.

Rationale for Correct Answers

1. Confirm bilateral breath sounds after care: Checking for equal and bilateral breath sounds immediately after repositioning or oral care ensures that the ET tube has not shifted or migrated into one bronchus. Unequal or absent breath sounds can indicate tube displacement, requiring prompt repositioning.

5. One staff member holds the tube and one performs care: This is a critical safety measure. Having one nurse stabilize the ET tube while another provides oral care or repositioning prevents accidental extubation or tube movement. It maintains correct tube depth and placement throughout the procedure.

Rationale for Incorrect Answers

2. Use suction pressures less than 120 mm Hg: While this is an important airway suctioning precaution, it does not specifically prevent or detect tube dislodgement during oral care.
3. Use water swabs to prevent mucosal drying: This measure maintains oral hygiene, not ET tube placement stability.
4. Use humidified inspired gas to help thin secretions: Humidification prevents secretion thickening but does not protect against tube dislodgement.
6. Move secretions into larger airways with turning every 2 hours: Turning promotes lung expansion and secretion movement but is unrelated to detecting tube displacement during oral care.

Take-Home Points

• Always stabilize the ET tube during repositioning and oral care to prevent dislodgement.
• Two-person technique is the safest method for handling the tube during care.
• Reassess breath sounds and tube depth after any repositioning or manipulation.
• Early detection of tube migration or extubation prevents hypoxia and ensures patient safety.

Immediately after endotracheal tube (ETT) insertion, the nurse must confirm correct tube placement to ensure ventilation and oxygenation. Assessing bilateral breath sounds and observing for symmetrical chest rise provides rapid, reliable evidence that the tube is in the trachea rather than the esophagus.

Rationale for Correct Answer

2. Assess bilateral breath sounds and observe for symmetrical chest rise: Auscultation of both lungs and observation of chest movement immediately confirm tracheal placement. Absence of breath sounds on one side may indicate mainstem bronchus intubation, and absent breath sounds bilaterally suggests esophageal placement, both of which require immediate correction.

Rationale for Incorrect Answers

1. Obtain a chest X-ray: A chest X-ray is the gold standard for confirming tube depth but is not immediate. Initial verification must be done at the bedside before ventilating.

3. Check the patient’s oxygen saturation after 10 minutes: Waiting 10 minutes delays recognition of malposition, risking hypoxia. Immediate assessment is required.

4. Inflate the cuff and secure the tube: While necessary for stabilizing the airway, cuff inflation alone does not confirm correct tracheal placement.

Take-Home Points

• Immediate confirmation of ETT placement is critical to prevent hypoxia or gastric insufflation.
• Bilateral breath sounds and chest rise are rapid bedside assessments for correct placement.
• Chest X-ray should follow to verify tube depth, but is not the first step.
• Always monitor oxygen saturation and ventilator parameters after securing the tube.