Local anesthesia mock 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
Note:
Bupivacaine: 90-180 mins (nerve block) pulpal, 4-9 hours soft tissue anesthesia.
Lidocaine: 60 mins (nerve block) pulpal, 3-5 hours soft tissue anesthesia.
Mepivacaine: 60 mins (nerve block) pulpal, 3-5 hours soft tissue anesthesia.
Prilocaine: 40-60 mins (nerve block) pulpal, 2-4 hours soft tissue anesthesia.
Articaine: 60-75 mins (nerve block) pulpal, 3-6 hours soft tissue anesthesia.
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
V
D. The needle irritated the muscles of the cheek Ans✓✓✓ C. The needled
penetrated the pterygoid plexus of veins
,A hematoma quickly appeared after a posterior superior alveolar nerve block.
Which of the following may have caused the hematoma?
Choose only ONE best answer.
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 local anesthetic is a "relative contraindication," this means that:
A. It should never be used
B. It will cause an allergy
C. Caution should be used
D. It will most likely cause a reaction Ans✓✓✓ C. Caution should be used
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 patient who is allergic to an ester drug would also be allergic to:
Choose only ONE best answer.
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 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 patient's
face is "drooping." What could have caused this change?
A. Local anesthetic was deposited into the parotid gland
B. Muscles spasms occurred from opening the jaw for too long
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
Note:
Bupivacaine: 90-180 mins (nerve block) pulpal, 4-9 hours soft tissue anesthesia.
Lidocaine: 60 mins (nerve block) pulpal, 3-5 hours soft tissue anesthesia.
Mepivacaine: 60 mins (nerve block) pulpal, 3-5 hours soft tissue anesthesia.
Prilocaine: 40-60 mins (nerve block) pulpal, 2-4 hours soft tissue anesthesia.
Articaine: 60-75 mins (nerve block) pulpal, 3-6 hours soft tissue anesthesia.
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
V
D. The needle irritated the muscles of the cheek Ans✓✓✓ C. The needled
penetrated the pterygoid plexus of veins
,A hematoma quickly appeared after a posterior superior alveolar nerve block.
Which of the following may have caused the hematoma?
Choose only ONE best answer.
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 local anesthetic is a "relative contraindication," this means that:
A. It should never be used
B. It will cause an allergy
C. Caution should be used
D. It will most likely cause a reaction Ans✓✓✓ C. Caution should be used
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 patient who is allergic to an ester drug would also be allergic to:
Choose only ONE best answer.
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 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 patient's
face is "drooping." What could have caused this change?
A. Local anesthetic was deposited into the parotid gland
B. Muscles spasms occurred from opening the jaw for too long
