LOCAL ANESTHESIA EXAMS SCRIPT LATEST
QUESTIONS AND ANSWERS SURE A+
✔✔Why does anesthesia fail to work near an abscessed tooth? - ✔✔Infection causes
lower pH which does not allow ionization of sodium molecules
✔✔Nerve that innervates the soft palate - ✔✔Lesser Palatine Nerve
✔✔First sign of local anesthesia toxicity - ✔✔CNS excitement then depression
✔✔Allergic reaction management - ✔✔Epi for immediate, Benadryl for delayed
✔✔You just administered anesthetic to your patient, and within minutes a rash was
forming on the patients neck. She complained of having difficulty breathing. What would
you do? - ✔✔-having an allergic rxn
-give epi
✔✔If you want hemostasis what injection is best? - ✔✔Infiltration
✔✔Beta blockers** - ✔✔Decrease blood pressure
✔✔What part of the syringe indicates it is an aspirating syringe? - ✔✔Harpoon
, ✔✔Antiseptic not to use to sterilize syringe and needle - ✔✔Alcohol
✔✔What is a possible cause of pain upon removal of the needle? - ✔✔Needle barb
✔✔How a self aspirating syringe works - ✔✔When you let off pressure it aspirates
✔✔What causes a hematoma? - ✔✔Injecting in the pterygoid plexus during a PSA
injection
✔✔Needle gauge: which lumen is smallest? - ✔✔Larger the gauge: smaller the lumen
Smaller the gauge: larger the lumen
✔✔What sensation is lost first? - ✔✔Pain
✔✔What function does sodium chloride provide in LA solutions? - ✔✔Makes the
solution isotonic
✔✔Local anesthetics to avoid in patients with a sulfa allergy - ✔✔Articaine
✔✔If a patient receives 3 1.7 ml cartridges of 3% mepivicaine, how much drug did she
receive? - ✔✔3% equals
=(1.7 x 30) x 3
=51 mg x 3
The answer is 153 mg.
✔✔What type of injection is local anesthesia - ✔✔Subcutaneous: under the skin
✔✔If you were going to anesthetize the maxillary incisors where would you inject? -
✔✔Papilla
✔✔Least preferable way to recap needle - ✔✔2 hand method
✔✔Do myelinated nerves travel faster or slower than unmyeliated nerves? -
✔✔Impulses travel faster
✔✔What injection numbs lower lip? - ✔✔IANB: the lingual nerve
✔✔What is the cause if patient has a lesion on the lower lip next day? - ✔✔Bit lip
✔✔Why infiltration works better in maxilla than mandible? - ✔✔The maxilla is less
dense
QUESTIONS AND ANSWERS SURE A+
✔✔Why does anesthesia fail to work near an abscessed tooth? - ✔✔Infection causes
lower pH which does not allow ionization of sodium molecules
✔✔Nerve that innervates the soft palate - ✔✔Lesser Palatine Nerve
✔✔First sign of local anesthesia toxicity - ✔✔CNS excitement then depression
✔✔Allergic reaction management - ✔✔Epi for immediate, Benadryl for delayed
✔✔You just administered anesthetic to your patient, and within minutes a rash was
forming on the patients neck. She complained of having difficulty breathing. What would
you do? - ✔✔-having an allergic rxn
-give epi
✔✔If you want hemostasis what injection is best? - ✔✔Infiltration
✔✔Beta blockers** - ✔✔Decrease blood pressure
✔✔What part of the syringe indicates it is an aspirating syringe? - ✔✔Harpoon
, ✔✔Antiseptic not to use to sterilize syringe and needle - ✔✔Alcohol
✔✔What is a possible cause of pain upon removal of the needle? - ✔✔Needle barb
✔✔How a self aspirating syringe works - ✔✔When you let off pressure it aspirates
✔✔What causes a hematoma? - ✔✔Injecting in the pterygoid plexus during a PSA
injection
✔✔Needle gauge: which lumen is smallest? - ✔✔Larger the gauge: smaller the lumen
Smaller the gauge: larger the lumen
✔✔What sensation is lost first? - ✔✔Pain
✔✔What function does sodium chloride provide in LA solutions? - ✔✔Makes the
solution isotonic
✔✔Local anesthetics to avoid in patients with a sulfa allergy - ✔✔Articaine
✔✔If a patient receives 3 1.7 ml cartridges of 3% mepivicaine, how much drug did she
receive? - ✔✔3% equals
=(1.7 x 30) x 3
=51 mg x 3
The answer is 153 mg.
✔✔What type of injection is local anesthesia - ✔✔Subcutaneous: under the skin
✔✔If you were going to anesthetize the maxillary incisors where would you inject? -
✔✔Papilla
✔✔Least preferable way to recap needle - ✔✔2 hand method
✔✔Do myelinated nerves travel faster or slower than unmyeliated nerves? -
✔✔Impulses travel faster
✔✔What injection numbs lower lip? - ✔✔IANB: the lingual nerve
✔✔What is the cause if patient has a lesion on the lower lip next day? - ✔✔Bit lip
✔✔Why infiltration works better in maxilla than mandible? - ✔✔The maxilla is less
dense
