Review of the Respiratory System (Nursing)

by Prof. Lawes

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    00:00 Hi! Welcome to our video on respiratory medications.

    00:04 We're gonna talk about the types of medications that make it easier for your patients to breath.

    00:10 Now let's do a quick review of kinda how the respiratory system works.

    00:14 Obviously, oxygen enters through your nose and your mouth.

    00:18 So before we even get started, stop and take a deep breath.

    00:27 Alright.

    00:28 You know that's never a bad idea when you're studying.

    00:31 It's always a good idea to come and take that deep breath and to relax.

    00:35 If you are able to take a good, deep breath, don't take that for granted.

    00:39 Because we're gonna learn today how we use medications to take care of patients who can't do that for various reasons.

    00:47 But let's talk, start from your nose and your mouth, it travels down the bronchi, down to the bronchioles and exchanges CO2, which is a waste product in the body, exchanges CO2 for O2 at the alveolar capillaries.

    01:01 Now those capillaries are pretty fragile because that's where really cool exchange happens.

    01:09 When that exchange is compromised, that's when we need the respiratory medications.

    01:14 So we've got the smooth muscle, it's found in the walls of the bronchi and the bronchioles.

    01:20 So that smooth muscle is part of what gets us into trouble.

    01:23 If that smooth muscle constricts, it's like someone put their hands around your throat.

    01:29 So I want you to keep in mind that part of what we're getting use with medications that open up airways is you want to relax that smooth muscle.

    01:38 Because bronchial spasms are when the smooth muscle just clamps down on those airways and the patients are unable to get a breath in.

    01:49 So that's just a quick review of the respiratory system.

    01:53 None of that should be new content for you.

    01:55 But first of all, I don't want you to ever take for granted the ability to take a big, slow, deep breath.

    02:02 Because that's what our patients with respiratory problems are desperate to be able to do.

    02:07 Remember the key players that you see in the slide.

    02:10 You've got the airways, you've got the alveolar capillaries where the CO2/O2 exchange happens.

    02:16 Because remember, even if a patient is not breathing, if I was to put my hand over someone's mouth, prevent them from breathing, CO2 would still be building up in the body.

    02:27 So that exchange, CO2 and O2 is obviously, critically important.

    About the Lecture

    The lecture Review of the Respiratory System (Nursing) by Prof. Lawes is from the course Respiratory Medications (Nursing).

    Included Quiz Questions

    1. Alveolar capillaries
    2. Nasal passage
    3. Bronchi
    4. Bronchioles
    1. Smooth muscle
    2. Skeletal muscle
    3. Cardiac muscle
    4. Respiratory muscle

    Author of lecture Review of the Respiratory System (Nursing)

     Prof. Lawes

    Prof. Lawes

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    I love the way you teach!!!
    By Ivonne P. on 14. December 2020 for Review of the Respiratory System (Nursing)

    Very helpful explanation. I watch your videos all the time, they are helping through nursing school beautifully, thank you