Local Anesthesia

Question 1

Anesthetics with only 1 “i”

Answer 1

Esters

Question 2

Anesthetics with 2 “i”

Answer 2

Amides

Question 3

Do esters or amide’s cause more allergic reactions?

Answer 3

Esters due to PABA

Question 4

Most local anesthetics are vasodilators except for?

Answer 4

Cocaine

Question 5

Places you cannot administer epinephrine in combination with a local anesthetic?

Answer 5

Fingers
Toes
Penis (Hose)
Nose
Ear

Question 6

Epinephrine side effects are most common with which local anesthetic?

Answer 6

Bupivicaine

Question 7

Is there cross-reactivity between an amide and an ester?

Answer 7

No

Question 8

Anesthetic most commonly used in the OR due to lasting 4x longer than lidocaine.

Answer 8

Bupivicaine

Question 9

What size needle is used to inject local anesthetic?

Answer 9

27 or 30 ga.
(1 - 3 mL syringe)

Question 10

Topical anesthesia should be limited to wounds of what size to avoid systemic absorption?

Answer 10

5 cm or less

Question 11

Local anesthetic is infiltrated around the border of the surgical field, leaving the operative area undisturbed

Answer 11

Field Block

Question 12

Anesthetic is injected directly adjacent to the nerve supplying the surgical field.

Answer 12

Nerve Block