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Pharmaco > Local Anesthetics > Flashcards

Local Anesthetics Flashcards

1
Q

Local Anesthetic characteristic

A

Corss memb- unionized
Block Na+ chnl- ionized

•Vasodilation- a small area of body

•due to infusion in blood (S/E)
-short acting
-ischemic side effect

•Adrenaline/Epinephrine- are added for long action ( 1:100000-1:200000)
•not be added to local anesthetic in those area where end arteries are present
- Vasoconstriction at end arteries will cause ischemia of distal portion of constricted part.

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2
Q

LA ; Esters

A

“Caine” , “i”

•Cocaine
•Procaine
•Chlorprocaine
•Tetracaine
•Benzocaine

Allergy to 1, avoid whole
-use Amide group

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3
Q

LA; Amides

A

“Caine”, “ii”

•Lignocaine
•Bupivacaine
•Prilocaine
•Etidocaine
•Ropivacaine
•Dibucaine

Allergy to 1, avoid whole
-use ether group

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4
Q

Only LA causing VC

A

Cocaine

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5
Q

MC used LA

A

Lignocaine

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6
Q

Shortest acting LA

A

Chlorprocaine

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7
Q

LA causing methemoglobinemia

A

Prilocaine

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8
Q

LA ; Max Cardiotoxic

A

Bupivacaine

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Pharmaco (8 decks)

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