Local anaesthetics action Flashcards
0
Q
Uses of local anaesthetic
A
As the only anaesthetic for surgery
To supplement a GA
Postoperative pain relief
Treatment for acute pain eg epidural in labour
Other unrelated indications such as lignocaine is used in the treatment of ectopic beats
1
Q
Local anaesthetics are drugs which
A
block conduction of nerve impulses along the nerve axon.
Their effect is reversible
They do not cause damage to nerve cells
2
Q
How do local anaesthetics work?
A
They prevent inward flow of sodium which is triggered by depolarisation and stop action potential being propagated.
