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Anesthesia

Anesthesia . 4-H Veterinary Science Extension Veterinary Medicine  Texas AgriLife Extension Service College of Veterinary Medicine and Biomedical Science Texas A&M System http://aevm.tamu.edu. Objectives. Describe the effects of anesthesia Describe types of anesthesia

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Anesthesia

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  1. Anesthesia 4-H Veterinary Science Extension Veterinary Medicine  Texas AgriLife Extension Service College of Veterinary Medicine and Biomedical Science Texas A&M Systemhttp://aevm.tamu.edu

  2. Objectives • Describe the effects of anesthesia • Describe types of anesthesia • Describe the states of anesthesia

  3. Definition • General or local insensibility, as to pain and other sensation, induced by certain interventions or drugs to permit the performance of surgery or other painful procedures • Controlled, reversible intoxication of the nervous system • Humane

  4. Remember • Various species of animals react differently • Animals differ in size and temperament • Animal species differ in anatomy and physiology • The patient must be properly restrained, physically and/or chemically for smooth, effective and safe deliver • #1 Priority – patient safety

  5. Groups of anesthetics • Local • Deaden sensory nervous in small area • General • Entire CNS and produces unconsciousness • Spinal • Interrupts function of nerves within spinal cord • Volatile • Air mixtures that animal breathes • Examples: nitrous oxide, halothane • Non-volatile • Injected IV • Examples: thiopental sodium, magnesium sulfate

  6. Anesthesia Choice • What’s available • Species of animal • Size of animal • Location of operation • Extent of operation • Overall health condition of the animal • Temperament of animal • Cost of the anesthetic • Familiarity with the anesthetic • Availability of trained persons to monitor animal

  7. Stages of Anesthesia • Stage 1: Voluntary Movement • Opposition by patient to flexing and extending the legs • Stage 2: Involuntary Movement • Decrease and loss of reflexes • Stage 3: Surgical Anesthesia • Respiration rate and depth and muscle tone • Stage 4: Paralysis • Color of blood in the surgical site

  8. Anesthesia overdose • Cause depression • Paralysis of respiration

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