Local Anesthesia CDCA Exam Questions and Verified
Answers – Latest Update 2026/2027 (100% Correct)
The maxillary division exits the skull through which foramen? -
ANSWER foramen rotundum
The ophthalmic division exits the skull through which foramen? -
ANSWER superior orbital fissure
what division of the trigeminal nerve is the largest? - ANSWER
mandibular-v3
The mandibular division exits the skull through which foramen? -
ANSWER foramen ovale
What cause would you expect if a patient had a lesion on the lower lip
the day after? - ANSWER trauma
Which one transmits impulses faster? A myelinated nerve or
unmyelinated nerve -
ANSWER myelinated
,How should you recap a needle? - ANSWER One-handed scoop
technique
Should the bevel be towards or away from bone? - ANSWER
against/towards bone
When do you aspirate? - ANSWER right before anesthetic is
deposited
inadvertent anesthesia of facial nerve can occur with which
injection? - ANSWER IA-inferior alveolar injection what is the
purpose of the bevel? - ANSWER decrease deflection is topical
(benzocaine) absorbed systemically? - ANSWER no
what part of the syringe indicates it is an aspirating syringe? -
ANSWER harpoon
What tissue is local anesthetic least effective on? - ANSWER
keratinized/palatal
, what local anesthetic is metabolized by pseudocholinesterase? -
ANSWER esters where are amides metabolized? - ANSWER liver
what is the possible cause of pain upon removal of the needle? -
ANSWER needle barb
how does a self aspirating syringe work? - ANSWER when you let off
pressure, it aspirates
what is the maximum recommended dose for a normal patient -
ANSWER 0.2 mg
What causes a hematoma? - ANSWER Injecting in the pterygoid
plexus during a PSA injection
how much volume is in a single cartridge of LA? - ANSWER 1.8 (1.7
ml)
Answers – Latest Update 2026/2027 (100% Correct)
The maxillary division exits the skull through which foramen? -
ANSWER foramen rotundum
The ophthalmic division exits the skull through which foramen? -
ANSWER superior orbital fissure
what division of the trigeminal nerve is the largest? - ANSWER
mandibular-v3
The mandibular division exits the skull through which foramen? -
ANSWER foramen ovale
What cause would you expect if a patient had a lesion on the lower lip
the day after? - ANSWER trauma
Which one transmits impulses faster? A myelinated nerve or
unmyelinated nerve -
ANSWER myelinated
,How should you recap a needle? - ANSWER One-handed scoop
technique
Should the bevel be towards or away from bone? - ANSWER
against/towards bone
When do you aspirate? - ANSWER right before anesthetic is
deposited
inadvertent anesthesia of facial nerve can occur with which
injection? - ANSWER IA-inferior alveolar injection what is the
purpose of the bevel? - ANSWER decrease deflection is topical
(benzocaine) absorbed systemically? - ANSWER no
what part of the syringe indicates it is an aspirating syringe? -
ANSWER harpoon
What tissue is local anesthetic least effective on? - ANSWER
keratinized/palatal
, what local anesthetic is metabolized by pseudocholinesterase? -
ANSWER esters where are amides metabolized? - ANSWER liver
what is the possible cause of pain upon removal of the needle? -
ANSWER needle barb
how does a self aspirating syringe work? - ANSWER when you let off
pressure, it aspirates
what is the maximum recommended dose for a normal patient -
ANSWER 0.2 mg
What causes a hematoma? - ANSWER Injecting in the pterygoid
plexus during a PSA injection
how much volume is in a single cartridge of LA? - ANSWER 1.8 (1.7
ml)
