Local Anesthesia Prometric Exam Questions and
Answers.
If #15 has a periodontal abscess and you've already given the PSA, what other injection
will you need to numb the lingual? - Correct answer Greater Palatine
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 - Correct
answer Free gingival margin
A central incisor has a periodontal defect on the lingual root surface, what injection
would you use? - Correct answer Nasopalatine
What is the treatment for a hematoma? - Correct answer Cold and compression for 12
hours
****You are seeing a patient for SRP and they have Cirrhosis of the liver, what
complications could arise from using an amide local anesthetic? - Correct answer
Patient has complications metabolizing the drug
*****What best describes a topical anesthetic? - Correct answer #1. Works on mucous
membranes. #2 not systemically toxic
*****Where would topical anesthetic be least affective? - Correct answer
Keratinized/palatal tissue
What is the shelf-life of LA? - Correct answer Expiration date on cartridge
What would happen if you administered 1 ml of solution per min?
A. No problems
B. Discomfort for patient - Correct answer No problems
Why doesn't LA work in infected areas? - Correct answer The infected area is more
acidic which does not allow ionization of sodium molecules
***0.2 mm for healthy
0.04 mm for cardiac pt - Correct answer What are the safe doses of epinephrine for a
cardiac patient and a healthy patient?
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? - Correct answer 3.4-3.6
Where is most likely to use a long needle? - Correct answer IA
, How much mL is in a single cartridge of LA? - Correct answer 1.8 ml
Which gauge has the smallest lumen? - Correct answer Smaller number, larger lumen
Which sensation is lost first? - Correct answer Pain
What function does sodium chloride provide in LA solutions? - Correct answer Makes
the solution isotonic
***What is the purpose of sodium bisulfate in LA? - Correct answer Antioxidant
preventing biodegration of LA
What do vasopressors do? - Correct answer Increases duration
What would cause a dry cornea? - Correct answer IA injection not contacting bone and
going into parotid gland - anesthesia to the facial nerve
Where does the mandibular nerve pass through in the skull? - Correct answer Foramen
Ovale
****Where does the nasopalatine nerve pass through? - Correct answer Incisive
foramen
Maxillary division of the trigeminal nerve is: - Correct answer Sensory
***Which nerve is NOT associated with the mandibular nerve branch? - Correct answer
Infraorbital
Where does the PSA not innervate? - Correct answer MB root of the maxillary 1st molar
****What injection is needed to anesthetize the lingual of maxillary anteriors? - Correct
answer Nasopalatine
****What injections are needed to anesthetize the entire palate on one side? - Correct
answer Greater Palatine and Nasopalatine
****How far do you insert the needle on the IA? - Correct answer 20-25 mm or 3/4
length of the needle
****What happens during depolarization? - Correct answer Sodium in and potassium out
Which local anesthetic is metabolized by pseudocholinesterase? - Correct answer
Esters
****Which has the highest occurrence of allergic reactions? - Correct answer Ester
(Benzocaine)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Lectjoe. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $23.49. You're not tied to anything after your purchase.