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Anesthesia
Injectable and inhalant
19
Veterinary Medicine
05/16/2010

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Cards

Term
Stages of anesthesia 1
Definition
occurs immediately
conscious but disoriented
reduced pain sensitivity
Normal HR, RR, reflexes
Term
Stages of Anesthesia 2
Definition
loss of consciousness
signs of involuntary excitement
reflexes present
keep short
Term
Stages of anesthesia 3
Definition
4 planes
1) light depth
2)medium depth
3) deep
4) death imminent
Term
Stages of anesthesia 4
Definition
respiratory arrest
Term
Anticholingergic Agents
Definition
Atropine, Glycopyrrolate, Scopolamine
Parasympholytic (antagonize parasymphic system)
decrease salivation, increase heart rate
may cause cardiac arrhythmias
can acuse ileus
Term
Phenothiazines
Definition
Acepromazine, Promazine, Chlorpromazine
Mental calming, no analgesic effect, antiemetic
Can promote seizure activity, metabolized thru liver
Term
Butyrophenones
Definition
Droperidol, Lenperone, Azaperone
Similar to phenothiazines
Do not use in horses
Azaperone commonly used in swine
Term
Benzodiazepines
Definition
Diazepam, Midazolam
mild tranquiler,muscle relaxant,anticonvulsant
Rapid IV of diazepam can cause cardiac arrest. Is painful IM
Term
Alpha-2 agonists
Definition
Xylazine,Detomidine, Medetomidine
potent sedative/muscle relaxant; mild analgesic. Can be reversed.
Xylazine assoc with compliations in small animals.
Causes bradycardia, sometimes respiratory depression. Vomiting. Can cause bloating in dogs and ruminants
Term
Narcotics/Opioids

NARCOTIC AGONISTS
Definition
Morphine,hydromorphone,meperidine,oxymorphone,fentanyl
sedation,euphoria,analgesic
caution in cats and horses
can cause vomiting, bradycardia, hypotension,respiratory depression, can cross placenta
Term
Narcotics/Opioids

NARCOTIC ANTAGONISTS
Definition
Naloxone, Nalorphine, Levallorphan
used to reverse narcotic agonists
may cause excitement, apnea, bradycardia, and in horses excessive sweating
Term
Narcotics/Opioids

NARCOTIC AGONIST/ANTAGONIST
Definition
Butorphanol
Sedation, analgesic
excellent cough suppressant
Term
Neuroleptics
Definition
Neuroleptanalgesia = sedation/analgesia by combining opioid and tranquilizer
i.e. acepromazine/hydromorphone
acepromazine/butorphanol
xylazine/butorphanol
midazolam/morphine
Term
Local Anesthesia agents
Definition
Injectablet: Procaine, Lidocaine, Bupivacaine
Topical Ophthalmic: Proparacaine, Tetracaine
Term
Local Anesthesia Methods 1
Definition
Topical - eye or mucous membrane
Term
Local Anesthesia 2
Definition
Nerve Block - injected near single nerve
Used in horses to localize source of lameness
Term
Local Anesthesia 3
Definition
Regional Blocks
1) linear
2) Field block
3) Epidural Block
Term
Local Anesthesia 4
Definition
Intra-articular anesthesia: agent injected into joint space
Term
Local Anesthesia 5
Definition
Intravenous regional anesthesia injected into limb distal to a tourniquet