LOCAL ANESTHESIA MOCK BOARD EXAM 2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT
DETAILED ANSWERS
When a nerve is in its resting state, the: - (answer) K+ is concentrated outside the cell.
Which of the following maintains the resting potential of a nerve fiber? - (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 - (answer) C and D
Which of the following anesthetics has the shortest duration when administering a local anesthetic
block? - (answer) Mepivacaine 3%
Levonordefrin has how many mg/mL of vasoconstrictor? - (answer) 0.05 mg/mL
How much epinephrine does a 1:200,000 dilution contain compared with a 1:100,000 dilution? -
(answer) Half
What is the cardiac dose for epinephrine? - (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? - (answer) 4.4 cartridges
What is the primary reason that catecholamines are added to local anesthetic solutions? - (answer)
Decrease the risk of toxicity
, LOCAL ANESTHESIA MOCK BOARD EXAM 2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT
DETAILED ANSWERS
Sodium bicarbonate is added to local anesthetic solutions: - (answer) only when a vasoconstrictor is
added
How many mg of epinephrine are in one cartridge of a 1:100,000 dilution? - (answer) 0.018 mg
During the inferior alveolar block the patient feels a sudden electrical shock. This is due to: - (answer)
the needle touching the lingual nerve.
Supraperiosteal injections are less successful on the mandible because of the - (answer) density of the
bone of the mandible.
Which of the following vasoconstrictor dilutions provides the greatest hemostasis? - (answer) 1:50,000
epinephrine
After the administration of a local anesthetic, what causes a droopy eyelid? - (answer) Depositing the
solution in the parotid gland.
Which anesthetic is primarily metabolized in the blood? - (answer) Articaine
What is the recommended needle gauge for an inferior alveolar block? - (answer) 25 gauge
Esters are metabolized by - (answer) plasma
Amides are metabolized by - (answer) liver
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? - (answer) Solution deposited
inferior to the mandibular foramen
DETAILED ANSWERS
When a nerve is in its resting state, the: - (answer) K+ is concentrated outside the cell.
Which of the following maintains the resting potential of a nerve fiber? - (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 - (answer) C and D
Which of the following anesthetics has the shortest duration when administering a local anesthetic
block? - (answer) Mepivacaine 3%
Levonordefrin has how many mg/mL of vasoconstrictor? - (answer) 0.05 mg/mL
How much epinephrine does a 1:200,000 dilution contain compared with a 1:100,000 dilution? -
(answer) Half
What is the cardiac dose for epinephrine? - (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? - (answer) 4.4 cartridges
What is the primary reason that catecholamines are added to local anesthetic solutions? - (answer)
Decrease the risk of toxicity
, LOCAL ANESTHESIA MOCK BOARD EXAM 2023-2024 ACTUAL EXAM 300 QUESTIONS AND CORRECT
DETAILED ANSWERS
Sodium bicarbonate is added to local anesthetic solutions: - (answer) only when a vasoconstrictor is
added
How many mg of epinephrine are in one cartridge of a 1:100,000 dilution? - (answer) 0.018 mg
During the inferior alveolar block the patient feels a sudden electrical shock. This is due to: - (answer)
the needle touching the lingual nerve.
Supraperiosteal injections are less successful on the mandible because of the - (answer) density of the
bone of the mandible.
Which of the following vasoconstrictor dilutions provides the greatest hemostasis? - (answer) 1:50,000
epinephrine
After the administration of a local anesthetic, what causes a droopy eyelid? - (answer) Depositing the
solution in the parotid gland.
Which anesthetic is primarily metabolized in the blood? - (answer) Articaine
What is the recommended needle gauge for an inferior alveolar block? - (answer) 25 gauge
Esters are metabolized by - (answer) plasma
Amides are metabolized by - (answer) liver
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? - (answer) Solution deposited
inferior to the mandibular foramen
