Dominate Your Dental Boards Local
Anesthesia Mock Exam - Ace Your Future
Ready to test your knowledge and pinpoint areas for focused study? This
meticulously crafted Local Anesthesia Mock Board Exam provides a realistic
simulation of your licensing exam. Detailed answers included to solidify your
understanding and boost your confidence
1. When a nerve is in its resting state, the:: K+ is concentrated outside the cell.
2. Which of the following maintains the resting potential of a nerve fiber?:
The Na+/K+ pump
3. Select the following anesthetic(s) available in the US that is(are) formulated
with epinephrine 1:200,000 A. Lidocaine B. Mepivacaine C. Prilocaine D.
Articaine E. C and D
4. Which of the following anesthetics has the shortest duration when
administering a local anesthetic block?: Mepivacaine 3%
5. Levonordefrin has how many mg/mL of vasoconstrictor?: 0.05 mg/mL
6. How much epinephrine does a 1:200,000 dilution contain compared with a
1:100,000 dilution?: Half
7. What is the cardiac dose for epinephrine?: 0.04 mg
8. How many cartridges could a patient from the answer in question #7 safely
receive if administering a 1:200,000 epinephrine dilution?: 4.4 cartridges (0.04
mg / 0.009 mg per cartridge)
9. What is the primary reason that catecholamines are added to local
anesthetic solutions?: Decrease the risk of systemic toxicity (by slowing
absorption)
10. Sodium bicarbonate is added to local anesthetic solutions:: only when a
vasoconstrictor is added (This is incorrect; sodium bicarbonate is sometimes
added to plain solutions to raise the pH and improve onset, but it's more common
in solutions without vasoconstrictors as vasoconstrictors lower pH)
, 11. How many mg of epinephrine are in one cartridge of a 1:100,000 dilution?:
0.018 mg
12. During the inferior alveolar block the patient feels a sudden electrical
shock. This is due to:: the needle touching the lingual nerve. (It could also be
the inferior alveolar nerve itself)
13. Supraperiosteal injections are less successful on the mandible because of
the: density of the bone of the mandible.
14. Which of the following vasoconstrictor dilutions provides the greatest
hemostasis?: 1:50,000 epinephrine
15. After the administration of a local anesthetic, what causes a droopy
eyelid?: Depositing the solution in the parotid gland. (Causing transient facial
nerve paralysis)
16. Which anesthetic is primarily metabolized in the blood?: Articaine (via
plasma cholinesterase)
17. What is the recommended needle gauge for an inferior alveolar block?: 25
gauge (or 27 gauge long)
18. Esters are metabolized by: plasma (pseudocholinesterase)
19. Amides are metabolized by: liver
20. The dental hygienist successfully administers an inferior alveolar block,
but the patient does not get numb. What is the possible reason why the patient
does not get numb?: Solution deposited inferior to the mandibular foramen
21. Prolonged parasthesia of the anterior part of the tongue is caused by
which nerve being traumatized?: Lingual nerve
22. What is the main reason anesthesia fails to occur near an abscessed
tooth?: Infection causes a decrease in the pH of the tissue
23. Which of the following local anesthetics will provide the longest duration
of action following a nerve block when a vasoconstrictor is absolutely
contraindicated?: 4% prilocaine, plain (Prilocaine generally has a longer
duration than mepivacaine without a vasoconstrictor)
Anesthesia Mock Exam - Ace Your Future
Ready to test your knowledge and pinpoint areas for focused study? This
meticulously crafted Local Anesthesia Mock Board Exam provides a realistic
simulation of your licensing exam. Detailed answers included to solidify your
understanding and boost your confidence
1. When a nerve is in its resting state, the:: K+ is concentrated outside the cell.
2. Which of the following maintains the resting potential of a nerve fiber?:
The Na+/K+ pump
3. Select the following anesthetic(s) available in the US that is(are) formulated
with epinephrine 1:200,000 A. Lidocaine B. Mepivacaine C. Prilocaine D.
Articaine E. C and D
4. Which of the following anesthetics has the shortest duration when
administering a local anesthetic block?: Mepivacaine 3%
5. Levonordefrin has how many mg/mL of vasoconstrictor?: 0.05 mg/mL
6. How much epinephrine does a 1:200,000 dilution contain compared with a
1:100,000 dilution?: Half
7. What is the cardiac dose for epinephrine?: 0.04 mg
8. How many cartridges could a patient from the answer in question #7 safely
receive if administering a 1:200,000 epinephrine dilution?: 4.4 cartridges (0.04
mg / 0.009 mg per cartridge)
9. What is the primary reason that catecholamines are added to local
anesthetic solutions?: Decrease the risk of systemic toxicity (by slowing
absorption)
10. Sodium bicarbonate is added to local anesthetic solutions:: only when a
vasoconstrictor is added (This is incorrect; sodium bicarbonate is sometimes
added to plain solutions to raise the pH and improve onset, but it's more common
in solutions without vasoconstrictors as vasoconstrictors lower pH)
, 11. How many mg of epinephrine are in one cartridge of a 1:100,000 dilution?:
0.018 mg
12. During the inferior alveolar block the patient feels a sudden electrical
shock. This is due to:: the needle touching the lingual nerve. (It could also be
the inferior alveolar nerve itself)
13. Supraperiosteal injections are less successful on the mandible because of
the: density of the bone of the mandible.
14. Which of the following vasoconstrictor dilutions provides the greatest
hemostasis?: 1:50,000 epinephrine
15. After the administration of a local anesthetic, what causes a droopy
eyelid?: Depositing the solution in the parotid gland. (Causing transient facial
nerve paralysis)
16. Which anesthetic is primarily metabolized in the blood?: Articaine (via
plasma cholinesterase)
17. What is the recommended needle gauge for an inferior alveolar block?: 25
gauge (or 27 gauge long)
18. Esters are metabolized by: plasma (pseudocholinesterase)
19. Amides are metabolized by: liver
20. The dental hygienist successfully administers an inferior alveolar block,
but the patient does not get numb. What is the possible reason why the patient
does not get numb?: Solution deposited inferior to the mandibular foramen
21. Prolonged parasthesia of the anterior part of the tongue is caused by
which nerve being traumatized?: Lingual nerve
22. What is the main reason anesthesia fails to occur near an abscessed
tooth?: Infection causes a decrease in the pH of the tissue
23. Which of the following local anesthetics will provide the longest duration
of action following a nerve block when a vasoconstrictor is absolutely
contraindicated?: 4% prilocaine, plain (Prilocaine generally has a longer
duration than mepivacaine without a vasoconstrictor)
