Flashcards in Quiz 4 Deck (19):
which of the following qualify as appropriate injection procedures?
--disposable syringe should be a size larger than amount of anesthetic anticipated for use during the procedure
--after insertion of the needle one should pull back on the plunger "on the move"
epinephrine is used in minor surgery because it is ____
(effective for use in distal end organs (toes, ears) as it decreased collateral circulation
which of the following regarding local anesthesia is INCORRECT?
fibers that carry stimuli from pain r/cs have a myeline sheath and are large in diameter
which of the following regarding local anesthesia is CORRECT?
--local anesthesia causes interruption of sensory nerve conduction w/o subjection pt to unconsciousness
--variables that influence choice & amount of local anesthesia include location, wound contamination & duration of surgical procedure.
--[higher] of local anesthetics result in loss of touch & pressure stimulus in addition to loss of pain stimuli
as ester that comes w/ or w/o epinephrine & had a slight increased risk of toxic rxn
ester that is common used for spinal blocks
most popular amide due to its option for epinephrine, low toxicity, rapid diffusion & rapid onset of action
amide that is slightly vasoconstrictive limiting its use in distal end organs
--amide w/ slow onset of action but longer duration of action
TAC (tetracaine, epinephrine, cocaine)
--applied topically = good for pediatrics
Ophthaine (proparacaine hydrochloride)
anesthetic solution combined w/ glycerine
anesthetic --effective on mucous membranes = over rides gag reflex
anesthetic that is applied topically prior to an injection
which of the following are correct regarding pharmacology of local anesthetics?
--max dose of local anesthetic w/o epinephrine is 30cc
--max dose w/ epinephrine 50cc
--pregger = no go. d/t toxic effects to fetus.
direction infiltration =
useful for open wounds or lacerations
--MC anesthesia technique
--useful for most lesions
--useful for distal regions of digits
what is false about toxic effects of local anesthetics
--systemic cardiovascular effects include hypotension & tachycardia