la ch 8 - demetra

1. What is the cardiac dose of epinephrine?
A. 0.02 mg
B. 0.04 mg
C. 0.2 mg
D. 0.4 mg
E. 2 mg

B. 0.04 mg

2. 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

D. 2000 mg per 10 mL

3. The dental hygienist administered 2.3 cartridges of 3% mepivacaine. How many cc were administered?
A. 3.24 cc
B. 4.80 cc
C. 4.14 cc
D. 3.98 cc

C. 4.14 cc

4. What is the MRD dose of 2% lidocaine for a 120-lb patient?
A. 240 mg
B. 320 mg
C. 381 mg
D. 400 mg

A. 240 mg

5. How many cartridges of 2% lidocaine 1:100,000 epinephrine can be safely administered to a 120-lb patient taking tricyclic antidepressants?
A. 1.1
B. 2.2
C. 3.3
D. 4.4

B. 2.2

For questions 7-13 use the following information to answer the questions. A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000 epinephrine. The dental hygienist reaches for another cartridge and realizes there is no more 2% lidocaine

B. 90 mg

For questions 7-13 use the following information to answer the questions. A 140-lb healthy patient received 2.5 cartridges of 2% lidocaine 1:100,000 epinephrine. The dental hygienist reaches for another cartridge and realizes there is no more 2% lidocaine

C. 0.068 mg

14. What is the cardiac dose for levonordefrin?
A. 0.2 mg
B. 0.04 mg
C. 0.02 mg
D. 1.0 mg

A. 0.2 mg

15. How many milligrams are in one cartridge of 4% articaine?
A. 72 mg
B. 68 mg
C. 54 mg
D. 9 mg

A. 72 mg

16. What is the absolute maximum dose of bupivacaine?
A. 80 mg
B. 70 mg
C. 100 mg
D. 90 mg

D. 90 mg

17. How many cartridges of 4% prilocaine with epinephrine can a 130-lb patient with significant cardiovascular disease receive?
A. 2.2
B. 4.9
C. 4.4
D. 5.9

C. 4.4

18. The dental hygienist administered three cartridges of mepivacaine 3% to a 170 lb patient. How many more cartridges of mepivacaine can the dental hygienist administer to complete the treatment?
A. 2.5 more
B. 3.2 more
C. 4.4 more
D. 5.0 more

A. 2.5 more

19. What is the absolute number of milligrams of epinephrine 1:50,000 a patient with significant cardiovascular disease may receive?
A. 0.072 mg
B. 0.029 mg
C. 0.039 mg
D. 0.049 mg

C. 0.039 mg

20. What is the maximum recommended dose for 0.5% bupivacaine for a 102-lb patient?
A. 70 mg
B. 60 mg
C. 80 mg
D. 90 mg.

A. 70 mg