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16 Cards in this Set
- Front
- Back
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preanethetics
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anticholinergic- atropine, glycopyrrolate scopolamine; tranqs and sedatives; opioids
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stage 1 analgesia
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disorientation, hyperreflexia, fear, ptyalism
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stage 2 delirium
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struggling, excitement, irregular respiration,eyelids open and pupils dilated reflexive vomiting
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stage 3 plane 1 light anesthesia
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regular resp, no more movement eyeball rotate ventrally pupils partially constrict, no gagging reflex, no toleration of surgery
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stage 3 plane 2 medium anesthesia
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good for most surgery animal immobile pupil response sluggish, dilated, eye rotate centrally
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stage 3 plane 3 deep anesthsia
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circ depression, resp shallow, artificial resp may be needed, bp low CRT increased
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stage 3 plane 4
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respiration is abdominal, fully dilated pupil w/o light response, dry eye, depression of CVS low HR and BP pale mucous membranes and prolonged CRT
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stage 4
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decreased respiration circ collapse and death
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classification of barbs
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long acting pheno
intermediate amo short acting pento ultrashort thiopental/ methohexital |
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MOA of barbs
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stimulate GABA hyperpolarization decrease CBF adn CMRO and neuronal activity in the brain
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thiopental
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ultrashort induce anesthesia causes skin sloughing distributed in the brain low distribution muscle and fat
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thiopental advisory
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avoid use in sight hound due to low oxidation metabolized by liver eliminated by kidney
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thiopental on the organs
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cv: spike BP and HR decrease intracranial pressure and increase cerebral perfusion pressure, venodialtion increases RBC in spleen
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thiopental and resp
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coughing laryngospasm due to excessive secretion, apnea which can be treated with doxapram
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thiopental pros and cons
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good for dogs with epilepsy not good for dogs with acidosis overdose can be treated with oxygen
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methohexital
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better for sight hounds may cause involuntary movement and delirium not used in horses
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