LOCAL ANESTHESIA MOCK BOARD Exam Questions With Correct Answers.
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Course
Local Anesthesia
Institution
Local Anesthesia
LOCAL ANESTHESIA MOCK BOARD
Exam Questions With Correct Answers.
When a nerve is in its resting state, the: - answerK+ is concentrated outside the cell.
Which of the following maintains the resting potential of a nerve fiber? - answerThe Na+
pump
Select the following anesthetic(s) available in...
LOCAL ANESTHESIA MOCK BOARD
Exam Questions With Correct 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
Sodium bicarbonate is added to local anesthetic solutions: - answer✔✔only when a
vasoconstrictor is added
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
Prolonged parasthesia of the anterior part of the tongue is caused by which nerve being
traumatized? - answer✔✔Lingual nerve
What is the main reason anesthesia fails to occur near an abscessed tooth? - answer✔✔Infection
causes a decrease in the pH of the tissue
Which of the following local anesthetics will provide the longest duration of action following a
nerve block when a vasoconstrictor is absolutely contraindicated? - answer✔✔4% prilocaine,
pain
Which of the following nerves when anesthetized provides soft tissue anesthesia of the lower lip
and chin? - answer✔✔mental nerve
At the first indication of a hematoma, the clinician should: - answer✔✔apple pressure to the area
What is the best explanation as to why a patient has a lesion on his or her lip the day after
receiving an inferior alveolar block? - answer✔✔self-mutilation
Local anesthetics work by penetrating the nerve to inhibit: - answer✔✔Na+ efflux
The coronoid notch is a landmark for which nerve block? - answer✔✔Inferior alveolar block
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