Page 1 of 40
LOCAL ANESTHESIA CDCA EXAM | {LATEST
2026/ 2027 UPDATE} COMPLETE ACTUAL AND
AUTHENTIC EXAM | BRAND NEW!
What is the purpose of the nitrogen gas bubble in the cartridge?
Prevents oxygen from entering the cartridge.
A dry cornea is associated with what condition?
Facial paralysis.
Over insertion of what injection could penetrate the pterygoid plexus?
PSA.
,Page 2 of 40
Your patient had an IA the day before. He calls and says he can't open
his mouth. What condition is this?
Trismus.
The initial reaction to a moderate to severe overdose of LA is what?
CNS excitation.
If your primary purpose is hemostasis, what is the best technique to
use?
Local infiltration.
,Page 3 of 40
What is the disadvantage of esters compared to amides?
Allergic reactions.
What is the most common cause of needle breakage?
Sudden patient movement.
If a patient is allergic to red wine, what anesthetic should be used?
3% Mepivacaine plain.
What is psychogenic pain?
Real pain without organic causes.
, Page 4 of 40
You are using 2% lidocaine without epinephrine. This increases the
risk of what?
System toxicity.
The nasopalatine nerve exits what foramen?
Incisive Foramen.
Tooth #15 needs to be anesthetized for periodontal surgery. You have
already administered a PSA. What other injections do you need to
administer?
Greater palatine nerve block.
LOCAL ANESTHESIA CDCA EXAM | {LATEST
2026/ 2027 UPDATE} COMPLETE ACTUAL AND
AUTHENTIC EXAM | BRAND NEW!
What is the purpose of the nitrogen gas bubble in the cartridge?
Prevents oxygen from entering the cartridge.
A dry cornea is associated with what condition?
Facial paralysis.
Over insertion of what injection could penetrate the pterygoid plexus?
PSA.
,Page 2 of 40
Your patient had an IA the day before. He calls and says he can't open
his mouth. What condition is this?
Trismus.
The initial reaction to a moderate to severe overdose of LA is what?
CNS excitation.
If your primary purpose is hemostasis, what is the best technique to
use?
Local infiltration.
,Page 3 of 40
What is the disadvantage of esters compared to amides?
Allergic reactions.
What is the most common cause of needle breakage?
Sudden patient movement.
If a patient is allergic to red wine, what anesthetic should be used?
3% Mepivacaine plain.
What is psychogenic pain?
Real pain without organic causes.
, Page 4 of 40
You are using 2% lidocaine without epinephrine. This increases the
risk of what?
System toxicity.
The nasopalatine nerve exits what foramen?
Incisive Foramen.
Tooth #15 needs to be anesthetized for periodontal surgery. You have
already administered a PSA. What other injections do you need to
administer?
Greater palatine nerve block.
