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Local Anesthesia Final Exam Review |
Comprehensive Q&A For Certification
Success
The most potent of all local anesthetics _______ has the highest P KA and the
slowest onset of action
A. Bupivacaine
B. Lidocaine
C. Tetracaine
D. Articaine -correct-answer-A
Which characteristic enhances the effectiveness of local anesthetics?
A. High lipid solubility
B. High pKa
C. Low pH
D. High concentration of cation molecules -correct-answer-
Infection and inflammation can cause the following affects when administering a
local anesthetic:
A. Make the local anesthetic more effective
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B. Increase tissue vascularity which can inactivate the local anesthetic more
rapidly
C. Increase the duration of action of the local anesthetic
D. Cause the inflamed tissue to have a high pH -correct-answer-
All of the following are desirable properties of local anesthetics except which one?
A. Reversible
B. Rapid onset
C. Stability in solution
D. Potent
E. slow biotransformation -correct-answer-
On occasion, a local anesthetic may be used for hemostasis in an area that is
already number. These higher concentrations of epinephrine also prolong the
duration of the anesthesia. -correct-answer-The first statement is true the second
is false
Which of the following is an effect of the additive sodium bisulfate?
A. Prolonged shelf life
B. Hemostasis
C. Increased anesthetic duration
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D. Pulpal anesthesia -correct-answer-A
A patient with a sulfite allergy can be administered which of the following?
A. 3% mepivacaine
B. 2% lidocaine
C. 4% prilocaine
D. Both A and C -correct-answer-D
Which of the following is considered a beneficial use of epinephrine?
A. Increase in cardiac efficiency
B. Treating anaphylactic attacks
C. Hemostasis
D. Both B and C -correct-answer-D
In the event of an inadvertent intravascular injection, the effects of epinephrine
first begin to show ______
A. Within 30 seconds
B. Within one minute
C. Within 5 minutes
D. Within 10 minutes -correct-answer-B
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Which of the following is a recommendation set forth by the American heart
Association in regard to the administration of local anesthesia?
A. Inject the anesthetic as quickly as possible
B. Administer no more than the maximum recommended dose of 0.5 MG of
epinephrine per visit
C. Administer the lowest possible effective dose
D. Both B and C -correct-answer-C
Levonordefrin is a ______ vasoconstrictor and is ______ as potent as epinephrine
A. Synthetic, one tenth
B. Naturally produced, one half
C. Naturally produced, one third
D. Synthetic, one sixth -correct-answer-D
Levonordefrin is available with 2% mepivacaine. These cartridges of mepivacaine
also contain sodium bisulfate to preserve levonordefrin -correct-answer-Both
statements are true
Which of the following vasoconstrictors is no longer used in dentistry, due to the
possibility of tissue necrosis?
Local Anesthesia Final Exam Review |
Comprehensive Q&A For Certification
Success
The most potent of all local anesthetics _______ has the highest P KA and the
slowest onset of action
A. Bupivacaine
B. Lidocaine
C. Tetracaine
D. Articaine -correct-answer-A
Which characteristic enhances the effectiveness of local anesthetics?
A. High lipid solubility
B. High pKa
C. Low pH
D. High concentration of cation molecules -correct-answer-
Infection and inflammation can cause the following affects when administering a
local anesthetic:
A. Make the local anesthetic more effective
,2|Page
B. Increase tissue vascularity which can inactivate the local anesthetic more
rapidly
C. Increase the duration of action of the local anesthetic
D. Cause the inflamed tissue to have a high pH -correct-answer-
All of the following are desirable properties of local anesthetics except which one?
A. Reversible
B. Rapid onset
C. Stability in solution
D. Potent
E. slow biotransformation -correct-answer-
On occasion, a local anesthetic may be used for hemostasis in an area that is
already number. These higher concentrations of epinephrine also prolong the
duration of the anesthesia. -correct-answer-The first statement is true the second
is false
Which of the following is an effect of the additive sodium bisulfate?
A. Prolonged shelf life
B. Hemostasis
C. Increased anesthetic duration
,3|Page
D. Pulpal anesthesia -correct-answer-A
A patient with a sulfite allergy can be administered which of the following?
A. 3% mepivacaine
B. 2% lidocaine
C. 4% prilocaine
D. Both A and C -correct-answer-D
Which of the following is considered a beneficial use of epinephrine?
A. Increase in cardiac efficiency
B. Treating anaphylactic attacks
C. Hemostasis
D. Both B and C -correct-answer-D
In the event of an inadvertent intravascular injection, the effects of epinephrine
first begin to show ______
A. Within 30 seconds
B. Within one minute
C. Within 5 minutes
D. Within 10 minutes -correct-answer-B
, 4|Page
Which of the following is a recommendation set forth by the American heart
Association in regard to the administration of local anesthesia?
A. Inject the anesthetic as quickly as possible
B. Administer no more than the maximum recommended dose of 0.5 MG of
epinephrine per visit
C. Administer the lowest possible effective dose
D. Both B and C -correct-answer-C
Levonordefrin is a ______ vasoconstrictor and is ______ as potent as epinephrine
A. Synthetic, one tenth
B. Naturally produced, one half
C. Naturally produced, one third
D. Synthetic, one sixth -correct-answer-D
Levonordefrin is available with 2% mepivacaine. These cartridges of mepivacaine
also contain sodium bisulfate to preserve levonordefrin -correct-answer-Both
statements are true
Which of the following vasoconstrictors is no longer used in dentistry, due to the
possibility of tissue necrosis?
