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chap10 local anesthe
Local anesthetics
Question | Answer |
---|---|
amide local anesthetic | |
cardiac arrhythmic | variation in the normal rythmm (motion) of the heart |
caudal anesthesia | injection of a local anesthetic into the caudal or subcaudal spinal canal |
cryoanesthesia | removing the sensation of touch or pain by applying extreme cold to the nerve ending |
epidural anesthetic | injection of a local anesthetic into the extadural(the outermost part of the spinal canal) space |
ester local anesthetic | anesthetic class that includes procaine, cocaine, bezocaine, and tetracain, metabolism primarily by plasma cholinesterases |
general anesthetic | drug that abolishes the response to pain by depressing the central nervous system(CNS) and producing loss consciousness |
hypersensitivity | exaggerated response such as rash, edema, or anaphylaxis that develops following exposure to certain drugs or chemicals |
infiltration anesthesia | injection of a local anestehtic directly int o the tissue |
intradermal anesthesia | injection of a local anesthetic into the part of the skin called the dermis |
local anesthetic | drug that reduces response to pain by affecting nerve conduction. Theaction can be limited to an area of the body according tothe site of admnistration |
nerve conduction | tranfer of impulses along a nerve by the movement of sodium and postssium ions |
regional nerve block | also called nerve block; the injection of a local anesthetic near the nerve root |
spinal anesthesia | injection of a local anesthetic into the subarachnoid space |
topical application | placing a drug on the surface of the skin or a mucous membrane(for example mouth, rectum) |
vasoconstriction | tightening or contraction of muscles(sphincters) in the blood vessels, which decreases blood flow through the vessels |
vasodilation | relaxation of the muscles(spinchters) controlling blood vessel tone, which increases blood flow through the vessels |
amide local anesthetic | anesthetic class that includes lidocaine, bupivicane, and mepivicaine and has a moderate to long duration of action because metabolism occurs in the liver. |