A patient is receiving oxygen therapy via a mechanical ventilator. The nurse assesses the patient's respiratory status and considers the need for suctioning. Which of the following indicates the need for suctioning?

1. A

   Normal air entry on auscultation

2. B

   The patient has an effective cough

3. C

   Reduced oxygen saturation levels

4. D

   Normal respiratory rate

Appeared in: NORCET 6 Prelims -2024

Explanation

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• A drop in oxygen saturation (hypoxemia) is a primary clinical indicator that secretions are obstructing the artificial airway.
• Accumulated secretions block the passage of air, which impairs gas exchange at the alveolar level, leading to reduced oxygen levels in the blood.
• Suctioning is performed to physically remove these secretions, restore airway patency, and improve oxygenation.
• Monitoring oxygen saturation is a critical component of assessing a ventilated patient's respiratory status and determining the need for interventions like suctioning.

Why Other Options Were Wrong

• Option A: Normal air entry on auscultation is a sign of a patent (open) airway, which is a desired finding and indicates that suctioning is not needed.
• Option B: An effective cough is the body's natural mechanism to clear secretions. If a patient can do this, they can manage their own airway, and invasive suctioning is unnecessary and contraindicated.
• Option D: A normal respiratory rate indicates that the patient is not in respiratory distress. The need for suctioning is often accompanied by signs of distress, such as an increased respiratory rate (tachypnea).

Related Visual

Clinical Relevance

• Nursing practice connection: Use the key finding related to Indications for airway suctioning in mechanically ventilated patients to guide bedside assessment, documentation, and the next nursing action.
• Suctioning should always be based on assessment, not a fixed schedule, to prevent complications. This is known as 'as-needed' or PRN suctioning.
• Unnecessary suctioning can cause harm, including tracheal trauma, hypoxemia, bronchospasm, and increased intracranial pressure.
• Failure to suction when needed can lead to airway obstruction, hypoxemia, atelectasis, and ventilator-associated pneumonia (VAP) from retained secretions.

How to Approach the Question

• First, identify the core of the question: What is a positive sign that suctioning is needed?
• Analyze the clinical context: The patient is on a mechanical ventilator, meaning they have an artificial airway and cannot clear secretions normally.
• Evaluate each option. Ask yourself: 'Does this sign indicate a problem (airway blockage) or stability (clear airway)?'
• Option A (Normal air entry) = Stability.
• Option B (Effective cough) = Stability.
• Option C (Reduced SpO2) = Problem/Distress.

Concept Tested & Keywords

• Concept Tested: Indications for airway suctioning in mechanically ventilated patients
• Stem keywords: oxygen therapy, mechanical ventilator, respiratory status, suctioning
• Lead-in keywords: indicates
• Clinical cues: Patient is on a mechanical ventilator, which implies an artificial airway and potential difficulty in clearing secretions independently.

Question ID

QbIUW4zumCEAaZrTVwHEef

Copy ID

Reference Book

E6 Nursing Fundamentals Potter Perry 12e Part 5 pp. 2, 16-18