LOCAL ANESTHESIA CDCA BOARD 2025/2026 QUESTIONS
WITH ANSWERS GRADED A+
✔✔If you inject 1/3 of the needle on an IA and hit bone, what do you do? - ✔✔Pull out
and redirect over the incisors.
✔✔What is the most common cause of needle breakage? - ✔✔Bending the needle
✔✔Inserting the needle too far in this injection risks hitting the pterygoid plexus? -
✔✔PSA
✔✔Patient experiences a sharp tingling pain and immediate anesthesia; what
happened? - ✔✔The needle went through the nerve.
✔✔What should be the depth of the needle insertion for the PSA? - ✔✔Half of the
needle length.
✔✔What gauge needle should be used for infiltration? - ✔✔25 or 27 short.
✔✔What is the purpose of vasoconstrictor? - ✔✔Counteract the vasodilating properties
of the anesthesia.
✔✔What function do vasoconstrictors serve to prevent overdose? - ✔✔They allow for
slow absorption
✔✔A patient has liver damage, what should you consider about administering amides? -
✔✔Can cause system toxicity. Give cardiac dose
✔✔The reason for most cases of post injection infection is? - ✔✔Improper handling of
armamentarium.
✔✔What is the preservative of anesthetic solution? - ✔✔Sodium Bisulfite
✔✔If the patient experiences dehydration of the cornea following treatment, what nerve
was involved? - ✔✔Ophthalmic Nerve
✔✔If a patient has atypical plasma cholinesterase, what drug will they have a problem
metabolizing? - ✔✔Esters
✔✔The patient is experiencing difficulty breathing and goes unconscious, what should
you give them? - ✔✔Epi Pen
WITH ANSWERS GRADED A+
✔✔If you inject 1/3 of the needle on an IA and hit bone, what do you do? - ✔✔Pull out
and redirect over the incisors.
✔✔What is the most common cause of needle breakage? - ✔✔Bending the needle
✔✔Inserting the needle too far in this injection risks hitting the pterygoid plexus? -
✔✔PSA
✔✔Patient experiences a sharp tingling pain and immediate anesthesia; what
happened? - ✔✔The needle went through the nerve.
✔✔What should be the depth of the needle insertion for the PSA? - ✔✔Half of the
needle length.
✔✔What gauge needle should be used for infiltration? - ✔✔25 or 27 short.
✔✔What is the purpose of vasoconstrictor? - ✔✔Counteract the vasodilating properties
of the anesthesia.
✔✔What function do vasoconstrictors serve to prevent overdose? - ✔✔They allow for
slow absorption
✔✔A patient has liver damage, what should you consider about administering amides? -
✔✔Can cause system toxicity. Give cardiac dose
✔✔The reason for most cases of post injection infection is? - ✔✔Improper handling of
armamentarium.
✔✔What is the preservative of anesthetic solution? - ✔✔Sodium Bisulfite
✔✔If the patient experiences dehydration of the cornea following treatment, what nerve
was involved? - ✔✔Ophthalmic Nerve
✔✔If a patient has atypical plasma cholinesterase, what drug will they have a problem
metabolizing? - ✔✔Esters
✔✔The patient is experiencing difficulty breathing and goes unconscious, what should
you give them? - ✔✔Epi Pen
