Local Anesthesia Mock Exam |330 questions with
verified answers
2% Lidocaine 1:100,000 is preferred over 3% mepivacaine for children. This is due
to the vasoconstrictor decreasing the risk of the local anesthetic systemic toxicity.
A. Both the statement & the reason are CORRECT & related
B. Both the statement & the reason are correct but NOT related
C. The statement is correct, but the reason is NOT
D. The statement is NOT correct, but the reason is CORRECT
E. NEITHER the statement nor the reason is CORRECT Ans✓✓✓
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many mg of epinephrine was administered to this patient?
A. 0.045 mg
B. 0.099 mg
C. 0.068 mg
D. 0.088 mg Ans✓✓✓ A. 0.045 mg
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
,How many milligrams of lidocaine did the dental hygienist administer?
A. 80 mg
B. 90 mg
C. 75 mg
D. 85 mg Ans✓✓✓ B. 90 mg
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many more cartridges of 3% mepivacaine can be administered to this
patient?
A. 5
B. 6
C. 7
D. 8 Ans✓✓✓ A. 5
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many more milligrams of 3% mepivacaine can be administered to this
patient?
,A. 310 mg more
B. 330 mg more
C. 420 mg more
D. 450 mg more Ans✓✓✓ A. 310 mg more
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many more milliliters of 3% mepivacaine can be administered?
A. 10.2 mL
B. 11 mL
C. 11.5 mL
D. 12 mL Ans✓✓✓ A. 10.2 mL
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
What is the maximum recommended dose for lidocaine?
A. 420 mg
B. 445 mg
C. 485 mg
, D. 500 mg Ans✓✓✓ B. 445 mg
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
What is the maximum recommended dose for mepivacaine?
A. 400 mg
B. 450 mg
C. 490 mg
D. 500 mg Ans✓✓✓ A. 400 mg
A 2% local anesthetic solution means all of the following EXCEPT one. Which one
is the EXCEPTION?
A. 2 g per 100 mL
B. 2000 mg per 100 mL
C. 20 mg per 1 mL
D. 2000 mg per 10 mL Ans✓✓✓ D. 2000 mg per 10 mL
A patient is considered to have tachycardia if beats per minute are greater than
80.
A. True
B. False Ans✓✓✓ B. False
verified answers
2% Lidocaine 1:100,000 is preferred over 3% mepivacaine for children. This is due
to the vasoconstrictor decreasing the risk of the local anesthetic systemic toxicity.
A. Both the statement & the reason are CORRECT & related
B. Both the statement & the reason are correct but NOT related
C. The statement is correct, but the reason is NOT
D. The statement is NOT correct, but the reason is CORRECT
E. NEITHER the statement nor the reason is CORRECT Ans✓✓✓
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many mg of epinephrine was administered to this patient?
A. 0.045 mg
B. 0.099 mg
C. 0.068 mg
D. 0.088 mg Ans✓✓✓ A. 0.045 mg
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
,How many milligrams of lidocaine did the dental hygienist administer?
A. 80 mg
B. 90 mg
C. 75 mg
D. 85 mg Ans✓✓✓ B. 90 mg
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many more cartridges of 3% mepivacaine can be administered to this
patient?
A. 5
B. 6
C. 7
D. 8 Ans✓✓✓ A. 5
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many more milligrams of 3% mepivacaine can be administered to this
patient?
,A. 310 mg more
B. 330 mg more
C. 420 mg more
D. 450 mg more Ans✓✓✓ A. 310 mg more
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
How many more milliliters of 3% mepivacaine can be administered?
A. 10.2 mL
B. 11 mL
C. 11.5 mL
D. 12 mL Ans✓✓✓ A. 10.2 mL
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
What is the maximum recommended dose for lidocaine?
A. 420 mg
B. 445 mg
C. 485 mg
, D. 500 mg Ans✓✓✓ B. 445 mg
A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000
epinephrine. The dental hygienist reaches for another cartridge & realizes there is
no more 2% lidocaine. The dental hygienist decides to switch to 3% mepivacaine.
What is the maximum recommended dose for mepivacaine?
A. 400 mg
B. 450 mg
C. 490 mg
D. 500 mg Ans✓✓✓ A. 400 mg
A 2% local anesthetic solution means all of the following EXCEPT one. Which one
is the EXCEPTION?
A. 2 g per 100 mL
B. 2000 mg per 100 mL
C. 20 mg per 1 mL
D. 2000 mg per 10 mL Ans✓✓✓ D. 2000 mg per 10 mL
A patient is considered to have tachycardia if beats per minute are greater than
80.
A. True
B. False Ans✓✓✓ B. False
