Opiates and Sedatives

by Brian Warriner, MD

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    Hello ladies and gentleman. This is a continuation of our discussions and lectures on Anesthesia. In this presentation we are going to talk about Additional Anesthetic Drugs. And we're going to spend a little time talking about pain, although we'll have a much fuller discussion of the Management of Pain in a future lecture. So what is Pain? The International Association for the Study of Pain (IASP), defines pain as an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage. So, when we talk about pain, we often talk as if something had been damaged, even when we don't know that that in fact has happened. So these are some of the subcategories that the IASP has defined, and I'm not going to go through all of these. You can look them up if you wish, but it's a very complex, extensive list of subcategories of pain. And there are variations in treatment depending upon which type of pain an individual suffers from. We're going to talk in more general terms about pain. So the IASP states that about 30% of humans suffer from chronic pain at some point in their lives. And chronic pain is pain that lasts for greater than 3 months. Some people say greater than 6 months. They further go on to say that about 7% of people are completely incapacitated by chronic pain. It's the most prevalent cause of disability that we have in healthcare. Greater cause, greater cost of disability than cancer and heart disease combined. It's universal. It's a human characteristic that exists in every one of us. Perception of pain is not modified by ethnic background, but presentation of pain is affected by the culture from which you come. And let me...

    About the Lecture

    The lecture Opiates and Sedatives by Brian Warriner, MD is from the course Anesthesiology: Basics. It contains the following chapters:

    • What is pain?
    • What are Analgesics?
    • Addiction
    • Antiemetic Drugs
    • Sedative Drugs

    Quiz for lecture

    Test your knowledge with our quiz for lecture Opiates and Sedatives.

    1. Is an extremely common condition.
    2. Occurs most in people with a “low pain threshold“.
    3. Is easily managed with opioids.
    4. Requires intervention by doctors, only.
    1. Are used for management of chronic pain only when other treatments have failed.
    2. Are the first line drugs in the management of chronic pain.
    3. When part of an anesthetic, provide a major component of the amnesia required for anesthesia.
    4. have few side-effects and are well tolerated by nearly all patients.
    1. Are generally used in neuraxial blocks or regional blocks.
    2. Are effective amnestics in anesthesia.
    3. Are comprised of amide and phenolic forms.
    4. Block only the pain nerves.
    1. Predicts the liklihood of nausea and vomiting after anesthesia.
    2. Indicates that post-operative nausea and vomiting is rare and does not require prophylaxis.
    3. Is useful as a predictor of post-operative nausea and vomiting only after general anesthesia of greater than 2 hours duration.
    4. Shows that smoking is a major cause of post-operative nausea and vomiting.

    Author of lecture Opiates and Sedatives

     Brian Warriner, MD

    Brian Warriner, MD

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