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Dysphagia and Pulmonary Function Part 2: Pulmonary Defense Mechanisms

presented by Deanna Britton, PhD, CCC-SLP, BC-ANCDS

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Disclosure Statement:

Financial: Deanna Britton receives compensation from MedBridge for this course. There is no financial interest beyond the production of this course.

Non-Financial: Deanna Britton has no competing non-financial interests or relationships with regard to the content presented in this course.

Satisfactory completion requirements: All disciplines must complete learning assessments to be awarded credit, no minimum score required unless otherwise specified within the course.

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Accreditation Check:

Pulmonary function and pulmonary defenses are highly relevant to dysphagia assessment in adults. This course, with Deanna Britton, provides an in-depth review of the body's pulmonary defense systems that are relevant to SLPs assessing patients for dysphagia. The course begins by describing cellular level defenses employed in the respiratory tract and lungs, and then covers reflexive defenses including cough and other expiratory reactions. The course concludes with a discussion of pulmonary defenses at the alveolar level, such as the alveolar macrophage. The goal of this course is both to describe pulmonary defense mechanisms, and to help participants understand how impairments of pulmonary defenses can contribute to risk for pneumonia.

Meet Your Instructor

Deanna Britton, PhD, CCC-SLP, BC-ANCDS

Deanna Britton is an Assistant Professor in the Department of Speech & Hearing Sciences at Portland State University (PSU), and Adjunct Assistant Professor at the Northwest Center for Voice & Swallowing in the Department of Otolaryngology (NWCVS) - Head & Neck Surgery at Oregon Health & Sciences University (OHSU) in Portland, Oregon. She is Board…

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Chapters & Learning Objectives

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Download the learning objectives for Dysphagia and Pulmonary Function Part 2: Pulmonary Defense Mechanisms.

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1. Anatomic Airway Defenses & Mucociliary Clearance

Following aspiration or respiratory compromise, the body employs several strategies at the cellular level to protect pulmonary function. In the first chapter of this course, Deanna Britton reviews key cellular level defenses, such as including mucociliary clearance.

2. Cough and Other Reflexive Airway Defenses

Reflexive and volitional cough and other macro-level respiratory defense mechanisms are also essential to protecting pulmonary function. In this chapter Deanna Britton reviews the mechanisms behind reflexive and volitional cough, and reviews scenarios in which these mechanisms can break down due to respiratory pathology.

3. Alveolar defenses & Overall Summary

Defenses specific to the alveoli represent a final defense mechanism for the pulmonary system. The final chapter of this course provides a brief introduction to these mechanisms, including the alveolar macrophage, anti-bacterial substances, and lymphocytes.

4. Learning Assessment

Test your knowledge with a series of case-based questions.

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