Local anesthetics

Question 1

Ester linked local anesthetics

Answer 1

Procaine
Tetracaine
Cocaine
Benzocaine
Chloropropane

Question 2

Topical ophthalmic anesthetic

Answer 2

Tetracaine

Question 3

Toxicity of tetracaine

Answer 3

CNS excitation
Local neurotoxicity

Question 4

Toxicity of cocaine

Answer 4

CNS excitation
Convulsions
Cardiac arrhythmias
HTN
Stroke

Question 5

Use of chloropropane

Answer 5

Infiltration
Spinal, epidural, and major nerve blocks

Question 6

Toxicity of chloropropane

Answer 6

CNS excitation
Local neurotoxicity

Question 7

Local anesthetic drug classes that blocks conduction by decreasing the large transient increase in permeability to Na

Answer 7

Ester linked
Amide linked

Question 8

Types of amide linked local anesthetics

Answer 8

Lignocaine
Mepivacaine
Bupivacaine
Ropivacaine
Prilocaine
Lidocaine

Question 9

Uses of bupivacaine

Answer 9

Infiltration
Spinal, epidural, and major nerve blocks

Question 10

Toxicity of bupivacaine

Answer 10

CNS excitation
Cardiovascular collapse

Question 11

Uses of prilocaine and lidocaine

Answer 11

Topical and IV use
Infiltration
Spinal, epidural, and major nerve blocks

Question 12

Toxicity of prilocaine

Answer 12

CNS excitation
Local neurotoxicity
Methemoglobinemia

Question 13

Toxicity of lidocaine

Answer 13

CNS excitation
Local neurotoxicity

Question 14

Where are amide linked local anesthetics metabolized?

Answer 14

Liver

Question 15

Order of sensory function block

Answer 15

Pain
Temperature
Touch
Deep pressure
Motor

Question 16

Increases duration of action of local anesthetic, decreases systemic toxicity, and decreases bleeding in the operative field

Answer 16

Vasoconstrictors

Question 17

Injection of local anesthetic directly into tissue without taking into consideration the course of the cutaneous nerves

Answer 17

Infiltration anesthesia

Question 18

Subcutaneous injection of a solution of local anesthetic in order to anesthetize the region distal to the injection

Answer 18

Field block anesthesia

Question 19

Injection into, or about, individual peripheral nerves or nerve plexuses

Answer 19

Nerve block

Question 20

Bier block

Answer 20

Regional IV anesthesia

Question 21

Location of spinal anesthesia

Answer 21

Between L2 and termination of the thecal sac
Into the subarachnoid space

Question 22

Toxicity symptoms associated with high concentrations of local anesthetics

Answer 22

Nystagmus
Muscle twitching
Overt tonic-clonic convulsions