1
APEX ANESTHESIA MOCK EXAM ACTUAL EXAM 100
QUESTIONS AND CORRECT ANSWERS
2026 ACTUAL BLUEPRINT
When a nerve is in its resting state, the:
A. K+ is concentrated outside the cell
B. Cell membrane is positive on the outside of the cell
C. Na+ is concentrated outside the cell
D. Cell membrane is more positive on the inside of the cell - ANSWER-
C. Na+ is concentrated outside the cell
Which of the following maintains the resting potential of a nerve fiber?
A. The K+ pump
B. The Na+ pump
C. The concentration gradient
D. The electrical impulse - ANSWER- B. 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- E. C and D
Which of the following anesthetics has the shortest duration when
administering a local anesthetic block?
A. Lidocaine 1:100,000
B. Mepivacaine 1:20,000
C. Mepivacaine 3%
D. Prilocaine 4% - ANSWER- C. Mepivacaine 3%
Levonordefrin has how many mg/mL of vasoconstrictor?
A. 0.05 mg/mL
B. 0.01 mg/mL
C. 0.9 mg/mL
D. 0.005 mg/mL - ANSWER- A. 0.05 mg/mL
,2
How much epinephrine does a 1:200,000 dilution contain compared
with a 1:100,000 dilution?
A. Half
B. Twice
C. One quarter
D. One forth - ANSWER- A. Half
What is the cardiac dose for epinephrine?
A. 0.2 mg
B. 0.04 mg
C. 1.0 mg
D. 2.0 mg - ANSWER- B. 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?
A. 1.1 cartridges
B. 4.4 cartridges
C. 2.2 cartridges
D. 3.3 cartridges - ANSWER- B. 4.4 cartridges
What is the primary reason that catecholamines are added to local
anesthetic solutions?
A. Decrease the risk of toxicity
B. Decrease the duration of action
C. Decrease the risk of postoperative pain
D. Decrease the risk of infection - ANSWER- A. Decrease the risk of
toxicity
Sodium bicarbonate is added to local anesthetic solutions:
A. Only when a vasoconstrictor is added
B. To prevent the oxidation of the amide
C. To make the solution isotonic
D. To help increase the pH of the vasoconstrictor - ANSWER- A. Only
when a vasoconstrictor is added
How many mg of epinephrine are in one cartridge of a 1:100,000
dilution?
A. 0.009 mg
B. 0.01 mg
C. 0.018 mg
D. 0.02 mg - ANSWER- C. 0.018 mg
, 3
During the inferior alveolar block the patient feels a sudden electrical
shock. This is due to:
A. The needle touching the inferior alveolar nerve
B. The needle touching the lingual nerve
C. The needle touching the buccal nerve
D. The needle touching the pterygomandibular raphe - ANSWER- B.
The needle touching the lingual nerve
Supraperiosteal injections are less successful on the mandible because
of the:
A. Porous bone of the mandible
B. Density of the bone of the mandible
C. pH of the tissue on the mandible
D. Large nerve trunks of the mandible - ANSWER- B. Density of the
bone of the mandible
Which of the following vasoconstrictor dilutions provides the greatest
hemostasis?
A. 1:20,000 levonordefrin
B. 1:50,000 epinephrine
C. 1:100,000 epinephrine
D. 1:200,000 epinephrine - ANSWER- B. 1:50,000 epinephrine
After the administration of a local anesthetic, what causes a droopy
eyelid?
A. Depositing the solution in the parotid gland
B. Depositing the solution medial to the mandibular foramen
C. Depositing the solution above the infraorbital foramen
D. Depositing the solution at the anteromedial border of the neck of the
mandibular condyle - ANSWER- A. Depositing the solution in the
parotid gland
Which anesthetic is primarily metabolized in the blood?
A. Lidocaine
B. Mepivacaine
C. Prilocaine
D. Articaine - ANSWER- D. Articaine
What is the recommended needle gauge for an inferior alveolar block?
A. 25 gauge
B. 27 gauge
APEX ANESTHESIA MOCK EXAM ACTUAL EXAM 100
QUESTIONS AND CORRECT ANSWERS
2026 ACTUAL BLUEPRINT
When a nerve is in its resting state, the:
A. K+ is concentrated outside the cell
B. Cell membrane is positive on the outside of the cell
C. Na+ is concentrated outside the cell
D. Cell membrane is more positive on the inside of the cell - ANSWER-
C. Na+ is concentrated outside the cell
Which of the following maintains the resting potential of a nerve fiber?
A. The K+ pump
B. The Na+ pump
C. The concentration gradient
D. The electrical impulse - ANSWER- B. 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- E. C and D
Which of the following anesthetics has the shortest duration when
administering a local anesthetic block?
A. Lidocaine 1:100,000
B. Mepivacaine 1:20,000
C. Mepivacaine 3%
D. Prilocaine 4% - ANSWER- C. Mepivacaine 3%
Levonordefrin has how many mg/mL of vasoconstrictor?
A. 0.05 mg/mL
B. 0.01 mg/mL
C. 0.9 mg/mL
D. 0.005 mg/mL - ANSWER- A. 0.05 mg/mL
,2
How much epinephrine does a 1:200,000 dilution contain compared
with a 1:100,000 dilution?
A. Half
B. Twice
C. One quarter
D. One forth - ANSWER- A. Half
What is the cardiac dose for epinephrine?
A. 0.2 mg
B. 0.04 mg
C. 1.0 mg
D. 2.0 mg - ANSWER- B. 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?
A. 1.1 cartridges
B. 4.4 cartridges
C. 2.2 cartridges
D. 3.3 cartridges - ANSWER- B. 4.4 cartridges
What is the primary reason that catecholamines are added to local
anesthetic solutions?
A. Decrease the risk of toxicity
B. Decrease the duration of action
C. Decrease the risk of postoperative pain
D. Decrease the risk of infection - ANSWER- A. Decrease the risk of
toxicity
Sodium bicarbonate is added to local anesthetic solutions:
A. Only when a vasoconstrictor is added
B. To prevent the oxidation of the amide
C. To make the solution isotonic
D. To help increase the pH of the vasoconstrictor - ANSWER- A. Only
when a vasoconstrictor is added
How many mg of epinephrine are in one cartridge of a 1:100,000
dilution?
A. 0.009 mg
B. 0.01 mg
C. 0.018 mg
D. 0.02 mg - ANSWER- C. 0.018 mg
, 3
During the inferior alveolar block the patient feels a sudden electrical
shock. This is due to:
A. The needle touching the inferior alveolar nerve
B. The needle touching the lingual nerve
C. The needle touching the buccal nerve
D. The needle touching the pterygomandibular raphe - ANSWER- B.
The needle touching the lingual nerve
Supraperiosteal injections are less successful on the mandible because
of the:
A. Porous bone of the mandible
B. Density of the bone of the mandible
C. pH of the tissue on the mandible
D. Large nerve trunks of the mandible - ANSWER- B. Density of the
bone of the mandible
Which of the following vasoconstrictor dilutions provides the greatest
hemostasis?
A. 1:20,000 levonordefrin
B. 1:50,000 epinephrine
C. 1:100,000 epinephrine
D. 1:200,000 epinephrine - ANSWER- B. 1:50,000 epinephrine
After the administration of a local anesthetic, what causes a droopy
eyelid?
A. Depositing the solution in the parotid gland
B. Depositing the solution medial to the mandibular foramen
C. Depositing the solution above the infraorbital foramen
D. Depositing the solution at the anteromedial border of the neck of the
mandibular condyle - ANSWER- A. Depositing the solution in the
parotid gland
Which anesthetic is primarily metabolized in the blood?
A. Lidocaine
B. Mepivacaine
C. Prilocaine
D. Articaine - ANSWER- D. Articaine
What is the recommended needle gauge for an inferior alveolar block?
A. 25 gauge
B. 27 gauge
