Download Occupational Asthma PowerPoint Presentation

Iframe embed code :

<iframe src='https://www.slidesfinder.com/embedpresentation/MjM1' width='630' height='570' frameborder='0' marginwidth='0' marginheight='0' scrolling='no' allowfullscreen></iframe>

Presentation url :

Home / Health & Wellness / Health & Wellness Presentations / Occupational Asthma PowerPoint Presentation

Occupational Asthma PowerPoint Presentation

PowerPoint is the world's most popular presentation software which can let you create professional Occupational Asthma powerpoint presentation easily and in no time. This helps you give your presentation on Occupational Asthma in a conference, a school lecture, a business proposal, in a webinar and business and professional representations.

The uploader spent his/her valuable time to create this Occupational Asthma powerpoint presentation slides, to share his/her useful content with the world. This ppt presentation uploaded by slidesfinder in Health & Wellness ppt presentation category is available for free download,and can be used according to your industries like finance, marketing, education, health and many more.

About This Presentation

slidesfinder

Description : View and free download Occupational Asthma powerpoint presentation which is uploaded by honey an active user in belonging ppt presentation Health & Wellness category.

Tags : Occupational Asthma

Published on : Dec 06, 2013
Views : 2082 | Downloads : 2

Download Now

Share on Social Media

Occupational Asthma Presentation Transcript

Slide 1 -

Occupational Asthma Tee L. Guidotti The George Washington University

Slide 2 -

Presentation of Occ Asthma Immediate hypersensitivity reaction Immediate bronchospasm Isolated late response (usually sensitizer-induced) Sleep disorder Variable/dual response

Slide 3 -

Types of Occupational Asthma New Onset - Sensitizer-induced - Irritant induced Aggravation of underlying asthma Reactive airways dysfunction syndrome (RADS) Cold air- or exercise-induced syndrome Airways reactivity secondary to hypersensitivity pneumonitis

Slide 4 -

Occupational Asthma Sensitizer-induced Specific antigen Minimal exposure Stereotyped response PPE often insufficient to control symptoms Medical removal usually necessary Irritant-induced Any irritant Moderate to heavy exposure Often variable PPE often effective in preventing episodes Medical removal the last resort

Slide 5 -

Sensitizer-Induced Occ Asthma Sensitization to a specific antigen - low molecular-weight, “hapten” - high molecular weight Reaginic Ab, mostly IgE, mediated Presentation variable - late phase reactivity - immediate sensitivity - dual or variable responsiveness

Slide 6 -

Sensitizer-Induced Asthma 2 Sensitization may occur at

Slide 7 -

Common Sensitizers(Incomplete List!) Low MW Isocyanates Anhydrides Metal salts Epoxy resins Fluxes Persulfate Aldehydes High MW Pharmaceuticals Animal proteins Latex Cereals Seafood Proteolytic enzymes Wood constituents

Slide 8 -

Irritant-Induced Occupational Asthma More common, clinically, than sensitizer-induced Often represents clinical expression of airways hyperactivity + irritant exposure May be induced by any irritating exposure Usually history of intolerance to second-hand tobacco smoke Some irritant exposures may also be sensitizing: CHO, TDI,TMA Classic example is “hot wire” asthma

Slide 9 -

RADS Acute onset following exposure to irritant Generally exposure of moderate severity Prognosis good but may have several years of airway hyperactivity and sequelae Often associated with: upper airway problems sleep disorder Independent of prior history of airways reactivity Conventional management

Slide 10 -

Aggravational Asthma Very common Existing airways reactivity: asthma hay fever and rhinitis other airways disease (e.g. COPD) Initial condition not occupational Moderate irritant exposure Provokes airways response Usually self-limited

Slide 11 -

Patterns of Airways Response

Slide 12 -

Immediate response Same shift, rapid onset Reaginic antibody if sensitizer-induced Acute mediators Responds to conventional asthma Rx Often difficult to distinguish from conventional asthma Irritant-induced tends to be milder

Slide 13 -

Late Responders Onset of bronchospasm hours after exposure Usually wheezing post-shift Often presents as a sleep disorder If isolated, usually associated with certain antigens (Western red cedar, TDI) Often combined

Slide 14 -

Dual/Variable effects Dual responders may combine immediate + late responses Variations may include cyclic bronchospasm (esp. Western red cedar) May be prolonged, sustained response (TDI, byssinosis) Usually slow recovery, relatively refractory to conventional Rx

Slide 15 -

Special Cases The following subsets of occupational asthma have special features: Laboratory animal sensitivity (high risk of anaphylaxis) Cotton dust, byssinosis Grain dust Hypersensitivity pneumonitis may have an airways component

Slide 16 -

Cold Air / Exercise-Induced Asthma May be associated with: dry cold air exertion hyperventilation Work in cold, dry climates Immediate response, short duration Further exercise may improve airflow! Mechanism: airway drying and cooling stimulates vagal receptors histamine, mediator release from mast cells

Slide 17 -

Principles of Evaluation Demonstrate airways reactivity - History - Presence of wheezing Spirometry Methacholine challenge Bronchoprovocation or substitute - Symptom diary - Pre/post shift

Slide 18 -

Methacholine Challenge + Test confirms airways reactivity only A functional test not specific for asthma - atopy - transient reactivity Bronchoprovocation with with specific antigen preferable to diagnose sensitizer-induced asthma -Tests can occur with quiescent occ asthma

Slide 19 -

Risks of Bronchoprovocation Anaphylaxis Iatrogenic reaction Sensitization

Slide 20 -

Ancillary Tests Clinical immunology - skin prick tests - RAST - ELISA PEF or FEV1, symptom and medication diary Pre/post shift and/or holiday PFTs Work place HHE

Slide 21 -

Management Conventional Rx for asthma Medical removal – consider options Physician’s First Report Impairment Assessment (c.f. AMA guidelines) Avoid irritants Evaluate PPE

Slide 22 -

Compensation Management Document causation Document impairment (episodic?) Medical removal required? Claimant factors - degree of impairment - age - retraining Impairment – Disability

Slide 23 -

Pop Health Management Treat as “Sentinel event” Surveillance Identification of specific hazard when possible Hazard Control - engineering controls - PPE

Frequently Asked Questions

> About SlidesFinder?

Slidesfinder is a website that allows users to upload and share their PowerPoint presentations online. It provides a platform for individuals and businesses to share their ideas and knowledge through presentations, and for others to view and download these presentations for educational or professional purposes.
Slidesfinder offers a wide range of presentation topics and categories, including business, education, science, technology, health, and more. Users can also search for presentations using keywords, tags, or by category. The website provides tools to create professional presentations with rich media, animations, and graphics.

One of the key features of Slidesfinder is its user-friendly interface, which allows users to easily upload, view, and share presentations. Users can also embed their presentations in their websites or blogs using the website's embed code feature.
Slidesfinder also offers premium services, such as the ability to create private presentations and to download presentations in high-quality formats. However, the basic features of Slidesfinder are free to use, making it accessible to anyone who wants to share their ideas and knowledge through presentations.

> How do I register with SlidesFinder?

Go to registration page (you can see signup link on top of website page) https://www.slidesfinder.com/signup . If you have facebook/gmail account them just click on SIGN IN WITH FACEBOOK OR SIGN IN WITH GOOGLE button, by this you will be a registered member of slidesfinder without filling any form, required detail automatically will be fatch from your account. If you do not a Facebook account, then click on "Signup". Fill all required fields and you will be a registered member of slidesfinder.

> Is slidesfinder account confirmation is mandatory?

Yes it is mandetory to active your account to login.

> Do I need to signup/login on SlidesFinder before uploading a PowerPoint presentation?

Yes, you need to login with your account before uploading presentation. Your username will be displayed on your uploaded presentation. Your registered email id is needed for sending your stats of uploaded presentation.

Slidesfinder is a sharing website for PowerPoint presentations search and share. Find your interest in the form of powerpoint presentations on slidesfinder and save your valuable time . On Slidesfinder you get presentations from our huge library of professional ppt presentations. We believe in making your search INFORMATIVE and FUN. Find your best ppt presentation from a pool of PowerPoint presentations stacked under important industry categories like business & management, heath & Wellness,eduction & training etc. We provide unique informative PowerPoint presentation for marketers, presenters and educationists. These professional PowerPoint presentations are uploaded by professionals from across numerous industry segments.These ppt presentations are available for FREE download.

Not just finding your interest, but facilitate you broadcast your interest. We have created this platform for easy sharing of PowerPoint presentations, ensuring that these presentations get maximum exposure. Create your slidesfinder account and upload PowerPoint presentations for free, share on social media platforms and BUILD YOUR CROWD WITH PRESENTATION !!

The Great Buddha says, "Share your knowledge.It’s a way to achieve immortality"! So, start sharing knowledge and we are here to make that immortal !!

Re-productivity of content are not allowed. Without prior written permission from author, commercial use of any content is illegal.