Ch. 5 & 6 LA Evolve Questions
to achieve the optimal anesthetic effect, topical should remain at the site of application for
1-2 min
of the following patients, which is most likely to have a negative reaction to topical
a child
which type of patient should not be administered a longer acting local anesthetic
a child with cerebral palsy
most local anesthetic dental cartridges contain ______________of solution
1.8mL
it has been reported that up to _________________ of patients with an asthmatic condition are allergic to bisulfite
10%
an anesthetic containing a ___________concentration of epinephrine provides the most effective hemorrhage control
1:50,000
topical will anesthesize the affected area ____________into the tissue
2-3mm
a patient who has just been administered oraqix gel can expect a comfortable duration of anesthesia of approximately
20 min
oraqix gel produces an anesthetic effect within
30 seconds
which anesthetic agent is not recommended , by some authors, to use for the IA block due to reports of parasthesia
articaine
a nerve is more likely to sustain an anesthetic-induced injury from which of the following solutions
articaine 4%
which topical has the most rapid onset of action
benzocaine
drying the mucosa with a 2x2 gauze , prior to application of topical , assists in
both a and b accurate placement of topical increasing the visibility
which of the following are symptoms of a localized reaction to topical
both a and c irritation , burning , and stinging at the site of application tissue sloughing or discoloration and temporary change to taste perception
which anesthetic has anticonvulsant properties
both a and c lidocaine mepivacaine
mepivacaine produces severe vasodilation and is only available with a vasoconstrictor. mepicacaine is metabolized in the blood plasma.
both are false
topical anesthetics have a lower concentration of anesthetic than their injectable counterparts. this is necessary because some topical anesthetics contain a vasoconstrictor.
both are false
topical is available in many different forms: liquid, gel, spray, and patch. topical distributed in single dose applications decreases possibility of cross-contamination.
both are true
a toxic overdose of topical may result in which of the following
bradycardia
due to increased vascularity, inflamed tissue will display a/an___________onset of action and a/an____________duration
decreased; shortened
which topical is not classified as an ester or an amide, but as a ketone
dyclonine hydrochloride
which of the following vasoconstrictors are added to local anesthetic solutions in the US
epinephrine and levonordefrin
short-acting anesthetics do not contain a vasoconstrictor . Bupivicaine is the only short-acting anesthetic.
first is true second is false
which of the following is not an ideal property of an oral topical
it produces dependency on repeated use
which of the following anesthetic agents is available in both topical and injectable
lidocaine
which of the following actions is an appropriate response to a patient who is more (or less) sensitive to local anesthesia?
make a notation in the patients chart identifying the variation of response and the modification you made to achieve anesthesia
which of the following variations in anatomic structure would not affect the administration of anesthesia
malocclusion
which of the following anesthetics is the best choice when a vasoconstrictor is contraindicated
mepivacaine
your patient remembers having an allergic reaction to local anesthesia prior to 1984 but for many years has since been administered local with no complication. Your patient may actually have an allergy to ___________which was removed in 1984.
methylparaben
which of the following injection techniques will increase soft tissue and pulpal anesthesia
nerve block
which of the following is a eutectic mixture that will thicken into a gel once inserted into a periodontal pocket, relieving pain associated with nonsurgical periodontal therapy
oraqix
in extremely high doses, which agent may cause methemoglobinemia
prilocaine
which anesthetic is the least toxic
prilocaine
allergic reactions to topical anesthestics are
rare
which of the following choices does not act as a buffer in local solutions
sodium bisulfite
topicals are available in a variety of forms. which method of delivery is most likely to produce a toxic reaction
spray
mild allergic reactions to topical can include _______, ____________ and ____________
swelling, raised welts, itching
which topical has the longest average duration
tetracaine hydrochloride
the FDA has released a Public Health Advisory alerting consumers to the potential risk of life-threatening or fatal reactions to over-the-counter topical anesthetics. Some of these over-the-counter topicals are available in concentrations twice the strength of those used in a dental office.
the first is true second is false
which of the following in not an appropriate use for topical
to achieve pulpal anesthesia prior to restorative dental procedures