The goal of pursed lip breathing exercise is to:

Appeared in: GMCH - 2016

Explanation

The primary purpose of pursed-lip breathing is to slow down expiration and create a slight back-pressure (positive pressure) in the airways.
This back-pressure prevents the small airways from collapsing prematurely during exhalation, a common problem in conditions like COPD.
By keeping the airways open longer, more trapped air can be expelled from the lungs, which reduces hyperinflation and eases the work of breathing.
This leads to improved gas exchange, relief from dyspnea (shortness of breath), and a greater sense of control over breathing.

Option A: Preventing aspiration pneumonia is related to swallowing function and protecting the airway from foreign material, not a breathing exercise for ventilation.
Option B: Strengthening the diaphragm is the primary goal of a different technique called diaphragmatic (or abdominal) breathing.
Option C: While breathing exercises can be part of airway clearance, specific techniques like huff coughing, postural drainage, and chest physiotherapy are designed to loosen and mobilize secretions.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain The primary goal and mechanism of pursed-lip breathing exercises as background academic context rather than a clinical decision trigger.
Nurses are responsible for teaching patients with chronic respiratory diseases, such as COPD and asthma, how to perform pursed-lip breathing to manage episodes of shortness of breath.
This technique is a vital self-management tool that empowers patients, reduces anxiety associated with dyspnea, and can improve their ability to perform daily activities.
It is a non-pharmacological, cost-effective intervention that can be used anytime and anywhere to gain control over breathing.

How to Approach the Question

First, identify the key phrase in the question: 'goal of pursed-lip breathing'. This is a direct recall question about a specific nursing intervention.
Recall the pathophysiology of obstructive lung diseases like COPD, where the primary issue during exhalation is airway collapse leading to air trapping.
Analyze the mechanics of pursed-lip breathing: exhaling slowly against resistance.
Connect the mechanics to the pathophysiology. The resistance creates back-pressure that stents the airways open, directly counteracting the air trapping.
Evaluate the other options. 'Strengthen the diaphragm' relates to diaphragmatic breathing. 'Loosen secretions' relates to airway clearance techniques. 'Prevent aspiration' relates to swallowing. This process of elimination confirms the correct answer.

Concept Tested & Keywords

Concept Tested: The primary goal and mechanism of pursed-lip breathing exercises.
Stem keywords: pursed lip breathing, goal, exercise
Lead-in keywords: goal of

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E6 Nursing Fundamentals Potter Perry 12e Part 5 p. 8-10

E6 Nursing Fundamentals Taylor p. 724-726

Practise the full GMCH - 2016

Attempt every question from this paper in a timed mock, then review the full solution for each one.