Local Anesthesia Final Exam Review | B. Increase tissue vascularity which can inactivate the local anesthetic more
rapidly
Comprehensive Q&A For Certification C. Increase the duration of action of the local anesthetic
Success D. Cause the inflamed tissue to have a high pH -correct-answer-
The most potent of all local anesthetics _______ has the highest P KA and the
slowest onset of action
All of the following are desirable properties of local anesthetics except which one?
A. Bupivacaine
A. Reversible
B. Lidocaine
B. Rapid onset
C. Tetracaine
C. Stability in solution
D. Articaine -correct-answer-A
D. Potent
E. slow biotransformation -correct-answer-
Which characteristic enhances the effectiveness of local anesthetics?
A. High lipid solubility
On occasion, a local anesthetic may be used for hemostasis in an area that is
B. High pKa already number. These higher concentrations of epinephrine also prolong the
C. Low pH duration of the anesthesia. -correct-answer-The first statement is true the second
is false
D. High concentration of cation molecules -correct-answer-
Which of the following is an effect of the additive sodium bisulfate?
Infection and inflammation can cause the following affects when administering a
local anesthetic: A. Prolonged shelf life
A. Make the local anesthetic more effective B. Hemostasis
C. Increased anesthetic duration
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D. Pulpal anesthesia -correct-answer-A
Which of the following is a recommendation set forth by the American heart
Association in regard to the administration of local anesthesia?
A patient with a sulfite allergy can be administered which of the following?
A. Inject the anesthetic as quickly as possible
A. 3% mepivacaine
B. Administer no more than the maximum recommended dose of 0.5 MG of
B. 2% lidocaine
epinephrine per visit
C. 4% prilocaine
C. Administer the lowest possible effective dose
D. Both A and C -correct-answer-D
D. Both B and C -correct-answer-C
Which of the following is considered a beneficial use of epinephrine?
Levonordefrin is a ______ vasoconstrictor and is ______ as potent as epinephrine
A. Increase in cardiac efficiency
A. Synthetic, one tenth
B. Treating anaphylactic attacks
B. Naturally produced, one half
C. Hemostasis
C. Naturally produced, one third
D. Both B and C -correct-answer-D
D. Synthetic, one sixth -correct-answer-D
In the event of an inadvertent intravascular injection, the effects of epinephrine
Levonordefrin is available with 2% mepivacaine. These cartridges of mepivacaine
first begin to show ______
also contain sodium bisulfate to preserve levonordefrin -correct-answer-Both
A. Within 30 seconds statements are true
B. Within one minute
C. Within 5 minutes
D. Within 10 minutes -correct-answer-B Which of the following vasoconstrictors is no longer used in dentistry, due to the
possibility of tissue necrosis?
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A. Levonordefrin A. 2% lidocaine
B. Norepinephrine B. 3% mepivacaine
C. Felyoressin C. 4% prilocaine
D. Phenylephrine -correct-answer-B D. .5% bupivacaine -correct-answer-A
The adverse affects of a vasoconstrictor overdosed last approximately: Immediately after being administered a local anesthetic with epinephrine, your
patient complains of a throbbing headache, increased feelings of anxiety, and a
A. 5 - 10 minutes
racing heart which of the following would explain this reaction
B. 10 - 15 minutes
A. Your patient is experiencing a sodium bisulfate overdose
C. 60 - 80 minutes
B. Your patient is experiencing a vasoconstrictor overdose
D. 120 minutes -correct-answer-A
C. Your patient is exhibiting signs of dental phobia
D. There is nothing abnormal about your patient's response: all patients have this
response to local Anastasia -correct-answer-B
Read the following statement and select the best choice below: only the minimum
effective dose should be administered without exceeding the maximum
recommended dose.
All of the following local anesthetics are available in dental cartridges in the US
A. The statement only applies to vasoconstrictors
EXCEPT one. Which one is the EXCEPTION?
B. The statement only applies to local anesthetic agents
C. The statement applies to both vasoconstrictors in local anesthetic agents
A. Articaine
D. None of the above -correct-answer-C
B. Etidocaine
C. Bupivacaine
D. Mepivacaine -correct-answer-B
In which of the following anesthetic cartridges is epinephrine available in both
concentrations1:50,000 and 1:100,000
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B. 0.5% bupivacaine with 1:200,000 epinephrine
Regarding the maximum recommended dose of local anesthetics: C. 4% articaine with 1:100,000 epinephrine
D. 2% mepivacaine with 1:20,000 levonordefrin -correct-answer-B
A. clinicians should use the largest clinically effective dose
B. administered dosages exceeding the recommended maximum will always cause
an overdose
Articaine is:
C. the dosages should always be based on the patient's actual weight
D. the calculated dosages should be decreased for medically compromised
A. metabolized exclusively in the liver
patients -correct-answer-D
B. classified only as an ester anesthetic
C. not recommended for use for inferior alveolar nerve blocks
D. capable of producing profound vasoconstriction -correct-answer-C
Which of the following is the correct maximum recommended dose for lidocaine
with epinephrine?
A. 7 mg/kg Which of the following is the correct value for the approximate duration of 2%
lidocaine with 1:100,000 epinephrine?
B. 90 mg total
C. 5 mg/kg
A. 15 minutes (pulpal anesthesia)
D. 300 mg total -correct-answer-A
B. 30-60 minutes (soft tissue anesthesia)
C. 120 minutes (pulpal anesthesia)
D. 180 minutes (soft tissue anesthesia) -correct-answer-D
Which of the following local anesthetics has the longest duration of action when
administered successfully for an inferior alveolar nerve block?
A. 2% lidocaine with 1:100,000 epinephrine When performing a PDL injection: