CDCA Local Anesthetic Exam Part 1 Questions and Answers

CDCA Local Anesthetic Exam Part 1
Questions and Answers5

How much LA is in a 1% cartridge? - ANSWERS-18 mg



How much LA is in a 2% cartridge? - ANSWERS-36 mg



How much LA is in a 3% cartridge? - ANSWERS-54 mg



How much EPI 1: 100,000 is in a 1.8 mL cartridge? - ANSWERS-.18 mg



Articane 4% = ? - ANSWERS-Septocaine



Bupivicaine .5% = ? - ANSWERS-Marcaine



Lidocaine 2% = ? - ANSWERS-Xylocaine



Mepivacaine plain 3% = ? - ANSWERS-Carbocaine



Mepivacaine with 1: 20,000 Levonordefrin 2% = ? - ANSWERS-Polocaine



Prilocaine = ? - ANSWERS-Citanest



What happens during depolarization? - ANSWERS-Sodium in, Potassium out

, Primary action of local anesthetic in producing a conduction block? - ANSWERS-*DECREASE*
sodium's ability to permeate



LA *decreases* the rate of depolarization and *increases* the firing threshold



True or False? - ANSWERS-True



LA blocks the sensation of pain by? - ANSWERS-Blocking nerve conduction to a circumscribed
area of the body



Why does anesthesia fail to work near an abscessed tooth? - ANSWERS-Infection lowers the pH
of the tissue, which does not allow ionization of sodium molecules. Blood diffuseses the
anesthetic away from the injection site



(inflammation = higher blood flow)



Which LA is metabolized by pseudocholinesterase? - ANSWERS-Esters:

-Procaine (Novacain)

-Benzocaine



Which anesthetic is not an amide? - ANSWERS-Procaine (Novocaine)



Most common anesthetic without epi? - ANSWERS-Mepivacaine (Carbocaine/ Polocaine)



first sign of LA toxicity? - ANSWERS-CNS excitement



Where is epi naturally found in the body? - ANSWERS-Adrenal medulla on kidneys/ Endocrine
system