LOCAL ANESTHESIA MOCK BOARD
Exam 2026 Questions and Answers
When a nerve is in its resting state, the: - Correct answer-K+ is concentrated
outside the cell.
Which of the following maintains the resting potential of a nerve fiber? - Correct
answer-The Na+ pump
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 - Correct answer-C and D
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, Which of the following anesthetics has the shortest duration when administering a
local anesthetic block? - Correct answer-Mepivacaine 3%
Levonordefrin has how many mg/mL of vasoconstrictor? - Correct answer-0.05
mg/mL
How much epinephrine does a 1:200,000 dilution contain compared with a
1:100,000 dilution? - Correct answer-Half
What is the cardiac dose for epinephrine? - Correct answer-0.04 mg
How many cartridges could a patient from the answer in question #7 safely receive
if administering a 1:200,000 epinephrine dilution? - Correct answer-4.4 cartridges
What is the primary reason that catecholamines are added to local anesthetic
solutions? - Correct answer-Decrease the risk of toxicity
Sodium bicarbonate is added to local anesthetic solutions: - Correct answer-only
when a vasoconstrictor is added
How many mg of epinephrine are in one cartridge of a 1:100,000 dilution? -
Correct answer-0.018 mg
During the inferior alveolar block the patient feels a sudden electrical shock. This
is due to: - Correct answer-the needle touching the lingual nerve.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
Exam 2026 Questions and Answers
When a nerve is in its resting state, the: - Correct answer-K+ is concentrated
outside the cell.
Which of the following maintains the resting potential of a nerve fiber? - Correct
answer-The Na+ pump
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 - Correct answer-C and D
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Which of the following anesthetics has the shortest duration when administering a
local anesthetic block? - Correct answer-Mepivacaine 3%
Levonordefrin has how many mg/mL of vasoconstrictor? - Correct answer-0.05
mg/mL
How much epinephrine does a 1:200,000 dilution contain compared with a
1:100,000 dilution? - Correct answer-Half
What is the cardiac dose for epinephrine? - Correct answer-0.04 mg
How many cartridges could a patient from the answer in question #7 safely receive
if administering a 1:200,000 epinephrine dilution? - Correct answer-4.4 cartridges
What is the primary reason that catecholamines are added to local anesthetic
solutions? - Correct answer-Decrease the risk of toxicity
Sodium bicarbonate is added to local anesthetic solutions: - Correct answer-only
when a vasoconstrictor is added
How many mg of epinephrine are in one cartridge of a 1:100,000 dilution? -
Correct answer-0.018 mg
During the inferior alveolar block the patient feels a sudden electrical shock. This
is due to: - Correct answer-the needle touching the lingual nerve.
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
