Local Anesthesia Prometric Exam Questions With
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Greater Palatine - ANSWER-If #15 has a periodontal abscess and you've already
given the PSA, what other injection will you need to numb the lingual?
Free gingival margin - ANSWER-You are scaling the lingual of #13, where would
you give the injection for an infiltration?
Mucobuccal fold, Mucogingival junction, free gingival margin, or apex of #13
Nasopalatine - ANSWER-A central incisor has a periodontal defect on the lingual
root surface, what injection would you use?
Cold and compression for 12 hours - ANSWER-What is the treatment for a
hematoma?
Patient has complications metabolizing the drug - ANSWER-****You are seeing a
patient for SRP and they have Cirrhosis of the liver, what complications could
arise from using an amide local anesthetic?
#1. Works on mucous membranes. #2 not systemically toxic - ANSWER-
*****What best describes a topical anesthetic?
Keratinized/palatal tissue - ANSWER-*****Where would topical anesthetic be
least affective?
Expiration date on cartridge - ANSWER-What is the shelf-life of LA?
No problems - ANSWER-What would happen if you administered 1 ml of solution
per min?
A. No problems
, B. Discomfort for patient
The infected area is more acidic which does not allow ionization of sodium
molecules - ANSWER-Why doesn't LA work in infected areas?
What are the safe doses of epinephrine for a cardiac patient and a healthy patient? -
ANSWER-***0.2 mm for healthy
0.04 mm for cardiac pt
3.4-3.6 - ANSWER-Some manufactures have changed how many mL of solution
are in a cartridge. How much would be administered if you had given 2 full
cartridges?
IA - ANSWER-Where is most likely to use a long needle?
1.8 ml - ANSWER-How much mL is in a single cartridge of LA?
Smaller number, larger lumen - ANSWER-Which gauge has the smallest lumen?
Pain - ANSWER-Which sensation is lost first?
Makes the solution isotonic - ANSWER-What function does sodium chloride
provide in LA solutions?
Antioxidant preventing biodegration of LA - ANSWER-***What is the purpose of
sodium bisulfate in LA?
Increases duration - ANSWER-What do vasopressors do?
IA injection not contacting bone and going into parotid gland - anesthesia to the
facial nerve - ANSWER-What would cause a dry cornea?
Foramen Ovale - ANSWER-Where does the mandibular nerve pass through in the
skull?
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