Obstructive Lung Disease: Asthma

by Carlo Raj, MD

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    Let's take a look at obstructive lung diseases and our first true pathology here, under obstructive, we’ll take a look at asthma. Keep in mind that much of this information in terms of its pathogenesis comes from immunology. So our strict focus here is going to be our patient, how are they going to present, and then ultimately, tie this in with the other obstructive diseases in which often times may be confused with emphysema and chronic bronchitis. Let’s begin. Asthma, inflammatory disease, small airway. Inflammation to airway, that leads to what? Mucous production. Stop there. I told you at some point in time that we will take a look at the definition here versus definition of chronic bronchitis. Why do I bring chronic bronchitis into play? Because of mucous production. Chronic bronchitis however, represents the fact that your patient is presenting with 3 months of continuous productive cough over a 2 year span. Bronchospasm, leading to a reversible obstructive lung disease. Well, it depends. But for the most part, think of it as being reversible. Why? Well, if you’re able to relieve your patient of whatever exposure that the patient might be having resulting in the asthma type attack, maybe perhaps you are able to reverse it. That’s an important definition there. Bronchodilators come to mind. Usually and typically seen in young patients. Many asthma patients usually end up having or have had exposure to allergen. This puts you in the realm of something like atopic which is majority of your patients with asthma or they’ve had a viral, URI stands for upper respiratory tract infections. Now all these can be exacerbated with having asthma. Now, what’s going on here actually? Well this comes under obstructive so imagine that increased mucous production taking place in the airway. Take a...

    About the Lecture

    The lecture Obstructive Lung Disease: Asthma by Carlo Raj, MD is from the course Respiratory Pathology. It contains the following chapters:

    • Asthma
    • Signs & Symptoms
    • Differential Diagnosis
    • Risk Factors & Prevention
    • Diagnosis
    • Treatment

    Author of lecture Obstructive Lung Disease: Asthma

     Carlo Raj, MD

    Carlo Raj, MD

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