Anasthetics

Question 1

What are the PABA esters

Answer 1

1. Tetracaine
2. Benzocaine
3. Benoxinate
4. Procaine

Question 2

What are the MABA esters

Answer 2

1. Proparacaine

Question 3

What is the BA ester

Answer 3

cocaine

Question 4

What are the amides

Answer 4

(LMBEP)

1. Lidocaine
2. Mepivicaine
3. Bupivicaine
4. Etidocaine
5. Prilocaine

Question 5

How are amides metabolized and what order metabolism

Answer 5

by the liver; 0 order

Question 6

Which ester has the least corneal compromise

Answer 6

benoxinate

Question 7

which ester has the greatest corneal toxicity and penetration

Answer 7

tetracaine

Question 8

what is the onset of topical esters and what is the duration

Answer 8

0.5 min (30 sec) and duration is 1/4 of an hour

Question 9

what is the onset of lidocaine and what is its duration

Answer 9

4-6 min and duration is 2/3- 1 hour

Question 10

Toxicity is ____ related to dose

Answer 10

exponentially

Question 11

____ show high allergy potential

Answer 11

Esters

Question 12

Esters based anesthetics are category C for pregnancy, lidocaine topical is category ____ for pregnancy

Answer 12

B

Question 13

What are injectable non anesthetic alternatives

Answer 13

1. antihistaminics

2. saline

Question 14

what are topical non anesthetic alternatives

Answer 14

antihistaminics

Question 15

what are the classic vasoconstrictors

Answer 15

phenylephrine and epinephrine

Question 16

what are advantages of phenylephrine and epinephrine

Answer 16

1. reduce absorption/systemic toxicity
2. reduce metabolism
3. sustain local effect
4. reduce bleeding at injection site

Question 17

What are adverse ocular effects of cocaine

Answer 17

1. epithelial desquamation
2. mydriasis
3. lid retraction

Question 18

what are drug interactions with topical cocaine

Answer 18

1. TCADS
2. MAO inhibitors
3. Decongestants
4. Antihypertensives