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Flashcards in Quiz 4 Deck (19):
1

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"

2

epinephrine is used in minor surgery because it is ____

vasoconstrictor
(effective for use in distal end organs (toes, ears) as it decreased collateral circulation

3

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

4

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

5

procaine (novocaine)

as ester that comes w/ or w/o epinephrine & had a slight increased risk of toxic rxn

6

tetracaine (pontocaine)

ester that is common used for spinal blocks

7

lidocaine (xylocaine)

most popular amide due to its option for epinephrine, low toxicity, rapid diffusion & rapid onset of action

8

mepivacaine (carbocaine)

amide that is slightly vasoconstrictive limiting its use in distal end organs

9

bupivacaine (marcaine)

--amide w/ slow onset of action but longer duration of action

10

TAC (tetracaine, epinephrine, cocaine)

--applied topically = good for pediatrics

11

Ophthaine (proparacaine hydrochloride)

anesthetic solution combined w/ glycerine

12

cetacaine (rostra)

anesthetic --effective on mucous membranes = over rides gag reflex

13

ethyl chloride

anesthetic that is applied topically prior to an injection

14

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.

15

direction infiltration =

useful for open wounds or lacerations

16

field block

--MC anesthesia technique
--useful for most lesions

17

volar block

--useful for distal regions of digits

18

what is false about toxic effects of local anesthetics

--systemic cardiovascular effects include hypotension & tachycardia

19

what is true about toxic effects of local anesthetics

--localized effects may manifest as erythema, pruritus & edema
--lightheadedness & yawning are common systemic effects that may results from improper injection procedure.
--screening patient & appropriate use of volume or [ ] of anesthetic may prevent toxic effects