Local Anesthesia Mock Exam questions with
verified answers
A clinician needs to provide anesthesia that will anesthetize oral structures for at
least 5 hours. Which local anesthetic should the clinician use?
A. Prilocaine
B. Lidocaine
C. Mepivacaine
D. Bupivacaine Ans✓✓✓ D. Bupivacaine
A hematoma quickly appeared after a posterior superior alveolar nerve block.
Which of the following may have caused the hematoma?
A. the solution was deposited into a blood vessel
B. The needle penetrated the parotid gland
C. The needle penetrated the pterygoid plexus of veins
D. The needle irritated the muscles of the cheek Ans✓✓✓ C. The needle
penetrated the pterygoid plexus of veins
A patient who is allergic to an ester drug would also be allergic to:
A. Lidocaine
B. Mepivacaine
C. Benzocaine
D. All of the above Ans✓✓✓ C. Benzocaine
,A periodontal surgery is scheduled around the second maxillary right molar.
Which type of injection is needed?
A. PSA nerve block only
B. PSA nerve block and MSA nerve blocks
C. GP nerve block and IA nerve block
D. PSA nerve block and GP nerve block Ans✓✓✓ D. PSA nerve block and GP nerve
block
A vasoconstrictor can do all of the following except
A. Increase the duration of anesthesia
B. Decrease the bleeding at site
C. Increase the absorption rate of the anesthetic into the vascular system
D. Decrease the likelihood of adverse reactions Ans✓✓✓ C. Increase the
absorption rate of the anesthetic into the vascular system
At the end of the dental appointment, you noticed that one side of the patients
face is "drooping." What could have caused this?
A. Local anesthetic was deposited in the parotid gland
B. Muscles spasms occurred from opening the jaw for too long
C. The needle nicked a blood vessel
D. The patient is experiencing syncope Ans✓✓✓ A. Local anesthetic was
deposited in the parotid gland
, During aspiration, you see blood rapidly coming through the dental cartridge.
What should the next step be in this situation?
a. turn the syringe 45 degrees and aspirate again
b. pull back the needle and re-insert it
c. Remove the needle and replace the cartridge
d. No action is needed Ans✓✓✓ c. Remove the needle and replace the cartridge
Epinephrine should NOT be used on patients who:
A. Experience angina on a daily basis
B. Had an MI episode 7 months ago
C. Have a pacemaker
D. All of the above Ans✓✓✓ A. Experience angina on a daily basis
For the administration of an inferior alveolar nerve block, how much of the long
needle should penetrate the tissues?
A. 1/2
B. 1/4
C. 2/3
D. Full length Ans✓✓✓ C. 2/3
verified answers
A clinician needs to provide anesthesia that will anesthetize oral structures for at
least 5 hours. Which local anesthetic should the clinician use?
A. Prilocaine
B. Lidocaine
C. Mepivacaine
D. Bupivacaine Ans✓✓✓ D. Bupivacaine
A hematoma quickly appeared after a posterior superior alveolar nerve block.
Which of the following may have caused the hematoma?
A. the solution was deposited into a blood vessel
B. The needle penetrated the parotid gland
C. The needle penetrated the pterygoid plexus of veins
D. The needle irritated the muscles of the cheek Ans✓✓✓ C. The needle
penetrated the pterygoid plexus of veins
A patient who is allergic to an ester drug would also be allergic to:
A. Lidocaine
B. Mepivacaine
C. Benzocaine
D. All of the above Ans✓✓✓ C. Benzocaine
,A periodontal surgery is scheduled around the second maxillary right molar.
Which type of injection is needed?
A. PSA nerve block only
B. PSA nerve block and MSA nerve blocks
C. GP nerve block and IA nerve block
D. PSA nerve block and GP nerve block Ans✓✓✓ D. PSA nerve block and GP nerve
block
A vasoconstrictor can do all of the following except
A. Increase the duration of anesthesia
B. Decrease the bleeding at site
C. Increase the absorption rate of the anesthetic into the vascular system
D. Decrease the likelihood of adverse reactions Ans✓✓✓ C. Increase the
absorption rate of the anesthetic into the vascular system
At the end of the dental appointment, you noticed that one side of the patients
face is "drooping." What could have caused this?
A. Local anesthetic was deposited in the parotid gland
B. Muscles spasms occurred from opening the jaw for too long
C. The needle nicked a blood vessel
D. The patient is experiencing syncope Ans✓✓✓ A. Local anesthetic was
deposited in the parotid gland
, During aspiration, you see blood rapidly coming through the dental cartridge.
What should the next step be in this situation?
a. turn the syringe 45 degrees and aspirate again
b. pull back the needle and re-insert it
c. Remove the needle and replace the cartridge
d. No action is needed Ans✓✓✓ c. Remove the needle and replace the cartridge
Epinephrine should NOT be used on patients who:
A. Experience angina on a daily basis
B. Had an MI episode 7 months ago
C. Have a pacemaker
D. All of the above Ans✓✓✓ A. Experience angina on a daily basis
For the administration of an inferior alveolar nerve block, how much of the long
needle should penetrate the tissues?
A. 1/2
B. 1/4
C. 2/3
D. Full length Ans✓✓✓ C. 2/3
