Dosing

Question 1

Maximum dose for 3% mepivacaine without epi.
Adults:
Kids:

Answer 1

400 mg

6.6 mg/kg

Question 2

Maximum dose for 2% lidocaine with 1:100,000 epi.
Adults:
Kids:

Answer 2

500 mg

7mg/kg

Question 3

Maximum dose for 4% articaine with 1:100,000 epi.
Adults:
Kids:

Answer 3

700 mg

5mg/kg

Question 4

Maximum dose for 0.5% bupivacaine with 1:200,000 epi.
Adults:
Kids:

Answer 4

90 mg

2mg/kg

Question 5

Each cartridge of local anesthesia contains approximately _____ of solution.

Answer 5

1.7 mL

Question 6

1 percent of local anesthesia is equivalent to ____ mg/ml

Answer 6

1% = 10mg/ml

Question 7

Vasoconstrictor is given as a ratio. 1:100,000 solution contains how much vascoconstricor?

Answer 7

0.01 mg/ml

Question 8

1:200,000 solution contains _____ mg/ml of vasoconstrictor.

Answer 8

0.005 mg/ml

Question 9

1 cc of anesthesia is equal to ____ mL.

Answer 9

1

Question 10

What is the maximum safe dose of epinephrine in a healthy adult during a single dental appointment?

Answer 10

0.2 mg

Question 11

What is the maximum safe dose of epinephrine for an adult with cardiac disease or severe hypertension?

Answer 11

0.04 mg

Question 12

Which local anesthesia has the longest soft tissue effect?

Answer 12

0.5% bupivicaine lasts 4-10 hours

Question 13

Which local anesthesia has the shortest soft tissue effects?

Answer 13

3% mepivacaine lasts 30-60 minutes

Question 14

How long does lidocaine last in soft tissues? Pulp?

Answer 14

soft: 2-4 hours
pulp: 60-90 mins

Question 15

For a 90kg child, what is the maximum dosage in mg for 2% lidocaine?

Answer 15

500mg

(90 kg) (7mg/kg) = 630 mg….but you still cannot exceed 500 mg

Question 16

True or False: Local Anesthetics cross the blood-brain barrier.

Answer 16

True

Question 17

True or False: A minimal LA overdose (less than 5 micrograms) will cause a depression of blood pressure.

Answer 17

False,
Minimal overdose = elevation of BP and HR
High overdose = depression of BP and HR

Question 18

What type of seizures can occur due to a moderate to high LA overdose?

Answer 18

tonic-clonic seizures

convulsive

Question 19

On which does LA have a greater affect: CNS or CVS?

Answer 19

CNS > CVS

Question 20

Low levels of lidocaine (1.8-5 micrograms) can ______ premature ventricular contractions (PVCs).

Answer 20

treat

Question 21

For which (3) injections will you give an entire cartridge?

Answer 21

1. Gow Gates (Mandibular)
2. V2 (Maxillary)
3. IANB (Mandibular)

Question 22

For which injections will you give 1/3 cartridge (~0.6mL)?

Answer 22

Supraperiosteal (infiltration)
Mental Block
Incisive Block

Question 23

For which injections will you give 1/2 (~0.9mL)?

Answer 23

PSA

ASA (infraorbital)

Question 24

How much LA is given for a Greater Palatine injection?

Answer 24

1/4 cartridge (~0.45 mL)

Question 25

How much LA is given for a Nasopalatine injection?

Answer 25

0.2 mL

Question 26

How much LA is given for a PDL injection?

Answer 26

0.2 mL PER ROOT (ex. Max molars = 3 x 0.2)

Question 27

How much LA is given for an intraseptal injection?

Answer 27

0.2 - 0.4 mL over a period of 20 seconds

Question 28

______ injection has the highest positive aspiration rate. Followed by the ______ injection.

Answer 28

IANB (11-15%)
Long Buccal (~10%)

Question 29

Type I allergies are ______ induced and occur within _____.

Answer 29

antigen-induced

seconds/minutes

Question 30

Type IV allergies are ______ mediated and occur within ______.

Answer 30

cell-mediated (CD4+ T cells with MH-Complexes)

48 hours