Page 1 of 159
CDCA LOCAL ANESTHESIA EXAM A, B, C WITH STUDY
GUIDE COMPLETE 400+ QUESTIONS AND CORRECT
DETAILED ANSWERS - JUST RELEASED
Your patient experiences a burning sensation during injection of xylocaine 2% with 1:100,000
epinephrine. This could be due to which of the following reasons?
a. the preservative needed due to the presence of the vasoconstrictor lowers the pH
b. a lower pH than the surrounding tissues
c. you did not notice that the blister pack indicated the expiration date was six months ago
d. the patient may be allergic to the stopper or diaphragm material
e. all the above except D
all except D
The most likely place for a needle to break is at the
hub
Extrusion of the stopper indicates that what may have occurred?
a. freezing possibly in shipment
b. disinfectant solution diffused through the diaphragm
c. there is too much anesthetic
d. a and b
e. none of the above
a and b
What is the approximate length of a long needle?
1
,Page 2 of 159
>30 mm
what is the advantage of using a 25 gauge rather than a 30 gauge needle?
a. ease of penetration
b. dependable aspiration
c. decreased deflection
d. increased patient comfort
e. B and C
B and C
The area on the syringe where one would screw on the needle is called the:
needle adaptor
Which of the following is the most important feature of the syringe barrel?
a. it provides the clinician with syringe stability and control
b. It is capable of being loaded from the side.
c. The large window provides direct vision of the cartridge during anesthetic administration.
d. All of the above
The large window provides direct vision of the cartridge during anesthetic administration.
Vasoconstrictors should be used in limited amounts for which of the followingconditions:
diabetes and liver disease
A patient with asthma who is taking steroid medications should not be given which ofthe
following:
2
,Page 3 of 159
sodium bisulfite/metabisulfate
A patient with renal dysfunction should be given which type of local anesthesia:
a. amide
b. esther
c. either of the above used judiciously
d. none of the above
either of the above used judiciously
What is the treatment protocol if a patient has controlled hyperthyroidism? Youshould:
limit the amount of vasoconstrictor
Older patients generally have a _______ pain threshold than younger patients.
higher
Reducing the patient's fear and anxiety in the dental setting is important for the dental
hygienist because it will help to increase the patient's pain reaction:
first true, second false
If a patient has had a heart attack, how long should elective dental treatment bedelayed
6m
What is the maximum amount of epinephrine a patient with a history of
cardiovasculardisease should receive per appointment:
0.04mg
Amides should be used in limited amounts in patients with what condition:
3
, Page 4 of 159
liver dysfunction
Which dental anesthetics should not be used if a patient has a history of
methemoglobinemia?
a. prilocaine
b. benzocaine
c. articaine
d. a and b
e. a and c
a and b
What is the most popular local anesthetic used in the United States?
Lidocaine
In today's society everyone speaks about their anxiety, everyone has a certain level of anxiety
from time to time.
What is the best method of managing a patient's anxiety?
Prevention
Which of the following may negative influence pain reaction?
Fear
In RI, CT and MA what type of supervision is practiced when administring local anesthesia?
Direct supervision
Human needs therory is defined as:
4
CDCA LOCAL ANESTHESIA EXAM A, B, C WITH STUDY
GUIDE COMPLETE 400+ QUESTIONS AND CORRECT
DETAILED ANSWERS - JUST RELEASED
Your patient experiences a burning sensation during injection of xylocaine 2% with 1:100,000
epinephrine. This could be due to which of the following reasons?
a. the preservative needed due to the presence of the vasoconstrictor lowers the pH
b. a lower pH than the surrounding tissues
c. you did not notice that the blister pack indicated the expiration date was six months ago
d. the patient may be allergic to the stopper or diaphragm material
e. all the above except D
all except D
The most likely place for a needle to break is at the
hub
Extrusion of the stopper indicates that what may have occurred?
a. freezing possibly in shipment
b. disinfectant solution diffused through the diaphragm
c. there is too much anesthetic
d. a and b
e. none of the above
a and b
What is the approximate length of a long needle?
1
,Page 2 of 159
>30 mm
what is the advantage of using a 25 gauge rather than a 30 gauge needle?
a. ease of penetration
b. dependable aspiration
c. decreased deflection
d. increased patient comfort
e. B and C
B and C
The area on the syringe where one would screw on the needle is called the:
needle adaptor
Which of the following is the most important feature of the syringe barrel?
a. it provides the clinician with syringe stability and control
b. It is capable of being loaded from the side.
c. The large window provides direct vision of the cartridge during anesthetic administration.
d. All of the above
The large window provides direct vision of the cartridge during anesthetic administration.
Vasoconstrictors should be used in limited amounts for which of the followingconditions:
diabetes and liver disease
A patient with asthma who is taking steroid medications should not be given which ofthe
following:
2
,Page 3 of 159
sodium bisulfite/metabisulfate
A patient with renal dysfunction should be given which type of local anesthesia:
a. amide
b. esther
c. either of the above used judiciously
d. none of the above
either of the above used judiciously
What is the treatment protocol if a patient has controlled hyperthyroidism? Youshould:
limit the amount of vasoconstrictor
Older patients generally have a _______ pain threshold than younger patients.
higher
Reducing the patient's fear and anxiety in the dental setting is important for the dental
hygienist because it will help to increase the patient's pain reaction:
first true, second false
If a patient has had a heart attack, how long should elective dental treatment bedelayed
6m
What is the maximum amount of epinephrine a patient with a history of
cardiovasculardisease should receive per appointment:
0.04mg
Amides should be used in limited amounts in patients with what condition:
3
, Page 4 of 159
liver dysfunction
Which dental anesthetics should not be used if a patient has a history of
methemoglobinemia?
a. prilocaine
b. benzocaine
c. articaine
d. a and b
e. a and c
a and b
What is the most popular local anesthetic used in the United States?
Lidocaine
In today's society everyone speaks about their anxiety, everyone has a certain level of anxiety
from time to time.
What is the best method of managing a patient's anxiety?
Prevention
Which of the following may negative influence pain reaction?
Fear
In RI, CT and MA what type of supervision is practiced when administring local anesthesia?
Direct supervision
Human needs therory is defined as:
4
