Chapter Review Questions 1. What is the cardiac dose ofepinephrine? A. 0.02 mg B. 0.04 mg C. 0.2 mg D. 0.4 mg E. 2 mg
2. A 2% local anesthetic solution means all of the followingEXCEPT one. Which one is the EXCEPTION? A. 2 g per 100 mL B. 2000mg per 100 mL C. 20 mg per 1 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 ccC. 4.14 cc D. 3.98 cc
4. What is the MRD dose of 2% lidocaine for a 120-lb patient? A.290 mg B. 320 mg C. 381 mg D. 400 mg
5. How many cartridges of 2% lidocaine 1:100,000 epinephrine canbe safely administered to a 120-lb patient taking tricyclicantidepressants? A. 1.1 B. 2.2 C. 3.3 D. 4.4
6. How many cartridges of 4% prilocaine can a healthy 150-poundpatient receive? A. 6.8 B. 7.3 C. 7.8 D. 8.3
For questions 7–13 use the following information to answer thequestions. A 140-lb healthy patient received 2.5 cartridges of 2%lidocaine 1:100,000 epinephrine. The dental hygienist reaches foranother cartridge and realizes there is no more 2% lidocaine. Thedental hygienist decides to switch to 3% mepivacaine.
7. What is the maximum recommended dose for lidocaine? A. 420 mgB. 445 mg C. 485 mg D. 500 mg
8. How many milligrams of lidocaine did the dental hygienistadminister? A. 80 mg 252 B. 90 mg C. 75 mg D. 85 mg
9. What is the maximum recommended dose for mepivacaine? A. 420mg B. 450 mg C. 490 mg D. 500 mg
10. How many more milligrams of 3% mepivacaine can beadministered to this patient? A. 300 mg more B. 330 mg more C. 420mg more D. 450 mg more
11. How many more cartridges of 3% mepivacaine can beadministered to this patient? A. 5 B. 6 C. 7 D. 8
12. How many more milliliters of 3% mepivacaine can beadministered? A. 10.8 mL B. 11 mL C. 11.5 mL D. 12 mL
13. 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
14. What is the cardiac dose for levonordefrin? A. 0.2 mg B.0.04 mg C. 0.02 mg D. 1.0 mg
15. How many milligrams are in one cartridge of 4% articaine? A.72 mg B. 68 mg C. 54 mg D. 9 mg
16. What is the absolute maximum dose of bupivacaine? A. 80 mgB. 70 mg C. 100 mg D. 90 mg
17. How many cartridges of 4% prilocaine with epinephrine can a130-lb patient with significant cardiovascular disease receive? A.2.2 253 B. 4.9 C. 4.4 D. 5.9
18. The dental hygienist administered three cartridges ofmepivacaine 3% to a 170 lb patient. How many more cartridges ofmepivacaine can the dental hygienist administer to complete thetreatment? A. 2.5 more B. 3.2 more C. 4.4 more D. 5.0 more
19. What is the absolute number of milligrams of epinephrine1:50,000 a patient with significant cardiovascular disease mayreceive? A. 0.072 mg B. 0.029 mg C. 0.039 mg D. 0.049 mg
20. What is the maximum recommended dose for 0.5% bupivacainefor a 102-lb patient? A. 70 mg B. 60 mg C. 80 mg D. 90 mg
