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Proficiency Exam Questions And Accurate Answers
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Proficiency Exam Questions And Accurate AnswersWhat is an alternate vasoconstrictor, other than epinephrine, that we use in local
anesthetics in dentistry?
levonordefrin
Which local anesthetic agent (lidocaine, mepivacaine, prilocaine, or articaine) has the
highest lipid solubility?
Answer: articaine
What can happen with multiple injections without switching out the needle?
answer: possible barb causing additional tissue damage.
Which type of needle is most prone to needle breakage?
A) 30 gauge (blue)
B) 27 gauge (yellow)
C) 25 gauge (red)
D) A & B
Answer: A
Which component of local anesthesia is most likely to cause an allergic reaction?
A) distilled water
B) HCl
C) sodium metabisulfite
,D) local anesthetic
E) NaCl
Answer: C
Question: A patient has a D2 caries lesion on #14 and requires a restoration. What
injection(s) is-are required to completely anesthetize the pulp of #14 before beginning
the procedure?
Answer: PSA, infiltration
Question: How many mL of anesthetics are there in a cartridge?
Answer: 1.8 mL
What are some clinical symptoms of anaphylaxis in an anesthetized patient? (Choose all
the apply)
A. Hypoxemia
B. Hypertension
C. Bradycardia
D. Tachycardia
E. Bronchospasms
Answer: A, D, E
True or False. Some patients may have a serious allergic reaction to epinephrine found
in some local anesthetics used in dentistry.
False. Epinephrine is naturally made in the body, therefore patients can't be allergic to
epinephrine.
True or false: a hematoma is caused by injury to the wall of a blood vessel and leaves a
permanent discoloration of the skin in that area.
,Answer: false
(T-F) Rapid absorption of LA results in an increase in plasma binding.
Answer: False
Which signs would should make a "Code Blue" protocol necessary to act before
developing into an emergency during a dental appointment? Choose 2.
A) Dyspnea
B) Edema
C) Petechiae
D) Xerostomia
E) Dysphagia
Answer: A and E
Which was not discussed as a major systemic disease process that might interfere with
local anesthetics?
A. Hepatic dysfunction
B. Congestive heart failure
C. Diabetes
D. Renal dysfunction
Answer: C
Regarding the main clinic protocols at Dugoni, how many cartridges can be given after a
start check and before additional faculty approval is needed?
Answer: 2 cartridges
, After delivering anesthesia at the UOP clinic, what must be documented? (Choose all
that apply)
a. type local anesthetic used
b. amount of anesthetic(s) used in mL
c. Vasoconstrictor used if applicable
d. injection(s) given, (ok to abbreviate)
e. patient's reaction, if adverse
Answer: all of the above
All of the following a typical situations of needle breakage except:
A) Involve 30 gauge short (blue)
B) Occur after pre-bending needles
C) Occur when "hubbing" the needle
D) Patient keeps his mouth open for too long
Answer: D
Which of the following is a role of hydrochloric acid in local anesthetic:
1. adjusts pH up
2. adjusts pH down
3. helps with stability
4. blocks neural pain transmission to brain
5. inhibits oxidation of vasoconstrictor
Answer: 2,3,5
Facial nerve paralysis is commonly associated with incorrect angulation of an incisive
nerve block.
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