Anesthetic Systems

by Brian Warriner, MD

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    Hello ladies and gentlemen. This lecture in our ongoing series of lectures on Anesthesiology, is going to focus on Anesthesia Systems, the very important topic of Airway Management, and then briefly, on Monitoring and Anesthesia. So, we're going to talk a little bit about the Anesthetic Machine. We're going to talk about the Partial Rebreathing System, which is the standard by which most of us function nowadays. We're going to talk about the Difficult Airway, which I've had many sleepless nights worrying about this, and I know nearly all my colleagues have as well. And we're going to talk about Standards of Monitoring for the Anesthesia Patient. So we've gone from a very simple process of dropping ether on to what was called a Schimmelbusch Mask and allowing it to vaporize as the patient breathed through the mask, to very sophisticated systems that are microprocessor based and are highly developed to primarily deliver safe amounts of anesthetic in an effective fashion. So this is the modern anesthetic machine. As you can see, it's a very complicated piece of equipment. Some people compare anesthesia to piloting a plane. This is our cockpit. In the anesthesia machine there are many valves, there's many pipes. There's a high pressure gas system, there's a low pressure gas system. There are vaporizers. There are monitors, as you can see on the device, and on the right hand, on the pole that comes off the right hand side of the device, you can see infusion pumps. Down on the lower part of the device, where you can see pipes and the greenish colored bag, that's the circle system, and that's really what's responsible for our way of delivering anesthetics. There's many safety features built into an anesthetic machine, not the least of which is that, it...

    About the Lecture

    The lecture Anesthetic Systems by Brian Warriner, MD is from the course Anesthesiology: Basics. It contains the following chapters:

    • The Anesthetic Machine
    • The Partial Rebreathing System
    • Safety Features in the Anesthetic Machine
    • Patient Monitoring
    • Invasive Monitors

    Quiz for lecture

    Test your knowledge with our quiz for lecture Anesthetic Systems.

    1. Utlilizes a partial re-breathing circuit to minimize gas and vapour use.
    2. Removes expired gases and vapours before the patient’s next breath.
    3. Uses sodium chloride crystals to remove expired carbon dioxide.
    4. Can tell the anesthesiologist how much opioid has been used in the anesthetic.
    1. Are activated by many system failure which may occur during anesthesia.
    2. Are limited to just a few to avoid confusion when one alarms.
    3. Turn off the anesthetic machine when activated.
    4. Activate the operating room cardiac arrest alarm.

    Author of lecture Anesthetic Systems

     Brian Warriner, MD

    Brian Warriner, MD

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