Quiz 2 Flashcards
- The two most common vasoconstrictors used in dentistry today are:
a. Epinephrine and norepinephrine
b. Epinephrine and Dopamine
c. Epinephrine and Levonordephrine
d. Epinephrine and Lidociane
c. Epinephrine and Levonordephrine
- A 1:50,000 concentration of vasoconstrictor has twice as much vasoconstrictor as 1:200,000.
a. True
b. False
b. False
- Factors to consider when selecting an appropriate local anesthetic agent for your patient will include:
- length of time needed to complete a procedure
- potential need for longer post-tx pain control
- medical status of the patient
- likelihood of self-mutilation due to numbness
- need for hemostasis during the appointment
a. 2, 4, and 5 only
b. 1, 2, and 3 only
c. 2, 3, and 4 only
d. all of the above
3d. all of the above
- Determine the concentration of local anesthetic agent in a 2% solution of Lidocaine.
a. 5 mg/ml
b. 15 mg/ml
c. 20 mg/ml
d. 30 mg/ml
4c. 20 mg/ml
- Determine the concentration of vasoconstrictor in a 1:100,000 solution of Lidocaine.
a. 0.05 mg/ml
b. 0.20 mg/ml
c. 0.01 mg/ml
d. 0.005 mg/ml
5c. 0.01 mg/ml
- If two cartridges of 2% Lidocaine with 1:100,000 epi were administered to your patient, what quantity of Lidocaine was given?
a. 50 mg
b. 60 mg
c. 72 mg
d. 80 mg
7c. 72 mg
CONTESTED Results for question 8.
8
0 / 1 point
If two cartridges of 2% Lidocaine with 1:100,000 were administered to your patient, what quantity of epinephrine was given?
a. 0.020 mg, Not Selected
Incorrect answer: b. 0.030 mg
Correct Answer:c. 72 mg
c. 72 mg, Not Selected
d. 80 mg, Not Selected
- If two cartridges of 3% Mepivacaine Plain were administered to your patient, what quantity of Mepivacaine was given?
a. 54 mg
b. 60 mg
c. 94 mg
d. 108 mg
9d. 108 mg
- Pt’s hx indicates that use of a vasoconstrictor is absolutely contraindicated. She is to receive SC/RP on her LR quad; you will be administering an IA nerve block injection. You anticipate that it will take approx. 1 hr to complete this procedure. Which of the following anesthetics would be the best choice for this patient?
a. 3% Mepivacaine
b. 0.5% Bupivacaine
c. 4% Prilocaine Plain
d. 4% Articaine
e. 2% Mepivacaine
6c. 4% Prilocaine Plain
If four cartridges of 0.5% Bupivacaine (Marcaine) with 1:200,000 were administered to your patient, what quantity of Bupivacaine was given:
a. 20 mg
b. 36 mg
c. 72 mg
d. 90 mg
b. 36 mg
- How many cartridges of 3% Mepivacaine can a healthy 120 lb adult receive?
a. 4.5
b. 4
c. 5.5
d. 6.5
d. 6.5
- How many carpules of 2% Lidocaine with 1:100,000 epinephrine can a medically compromised cardiac patient safely receive, assuming that the use of a vasoconstrictor is not contraindicated?
a. 1 cartridge
b. 2 cartridges
c. 3 cartridges
4. cartridges
- b. 2 cartridges
- A 73 y/o female, weighing 125 pounds, presents for dhy therapy on the UR quad.
Hx: Bypass surgery 2 years ago and being monitored by her physician for HT which is presently controlled by medication.
You administer: PSA, MSA, ASA, GP, and NP using 2% Lidocaine with 1:100,000 epinephrine. Can this anesthetic be safely used for this patient?
a. yes, as long as it’s used judiciously
b. yes, there are no problems at all with using any type of LA agent with this patient
c. no, this LA is an absolute contraindication
d. no, this patient should not receive any anesthetic agents at this time
13a. yes, as long as it’s used judiciously
- For the same patient (73y/o, 125lbs, bypass sx 2 yrs ago, monitored by MD, HT controlled w/ med) you plan on using 3 cartridges of 2% Lidocaine with 1:100,000 epinephrine. Does this amount exceed the MRD for this particular patient?
a. no, 3 cartridges in acceptable
b. yes, this amount exceeds the MRD
14.b. yes, this amount exceeds the MRD
- What is the maximum amount of vasoconstrictor that a healthy patient can receive in milligrams?
a. 0.2 mg
b. 0.04 mg
c. 0.4 mg
d. 0.02 mg
15a. 0.2 mg
CONTESTED: 16
0 / 1 point
If you had a choice between using 2% Lidocaine with 1:50,000 or 1:100,000 epinephrine to control hemorrhage during a scaling and root planning appointment, which one would be the most appropriate to use?
Incorrect answer:a. 1:50,000
Correct Answer:b. 1:100,000
b. 1:100,000, Not Selected
- You need 15 minutes of pulpal anesthesia, should you choose 2% Mepivacaine or 3% Mepivacaine?
a. 2% Mepivacaine
b. 3% Mepivacaine
17b. 3% Mepivacaine
- Besides increased duration of action, what is the purpose of the vasoconstrictor in the anesthetic cartridge?
a. to increase the shelf life of the LA
b. to decrease toxicity by lowering systemic absorption
c. to control bleeding
d. a and b only
e. b and c only
18e. b and c only (decrease toxicity by lowing systemic absorption and to control bleeding)
- If epinephrine is accidentally injected intravenously, what are the signs?
a. restlessness
b. heart palpitations
c. tremors
d. dizziness
e. respiratory difficulty
f. all of the above
19f. all of the above
- Is 6 carpules of 3% Mepivacaine slowly given to a 150 lb, healthy patient appropriate?
a. yes
b. no
20a. yes
- Your patient weighs 185 pounds and you would like to administer 2% Lidocaine. Can your patient safely receive 9 carpules?
a. yes
b. no,
21a. yes
- A patient has an allergy to red wine and dried fruit. Which anesthetic is NOT contraindicated?
a. 3% Mepivacaine
b. 2% Lidocaine with epinephrine
c. 0.5% Bupivacaine
22a. 3% Mepivacaine
