Deck 43: Local Anesthesia

Question 1

Which of the following routes of administration has the highest rate of systemic absorption of local anaesthetic agents?

A) Epidural administration
B) Intercostal administration
C) Subcutaneous administration
D) Brachial plexus administration

Answer 1

Intercostal administration

Question 2

Which of the following local anaesthetics has a relatively long duration of action?

A) Procaine
B) Lignocaine
C) Bupivacaine
D) Mepivacaine

Answer 2

Bupivacaine

Question 3

The mechanism of action of the local anaesthetics is to impede the movement of which ion through its membrane channels?

A) Calcium
B) Potassium
C) Sodium
D) GABA

Answer 3

Sodium