University of Illinois, Chicago

NURS 531

Chapter 43: Local anaesthetics and other drugs affecting sodium channels

MULTIPLE CHOICE

1)Intravenous regional anesthesia with lidocaine is used to provide anesthesia for

1. childbirth
2. removal of superficial foreign bodies
3. neurosurgery
4. limb surgery
5. abdominal surgery

2.    Local anesthetics have greater affinity for sodium channels in the

1. resting state
2. open and inactivated states
3. open and resting states
4. inactivated and resting states
5. closed state

3.    Which local anesthetic is characterized by rapid onset, medium duration of action, and good tissue penetration?

1. procaine
2. cocaine
3. lidocaine
4. bupivacaine
5. prilocaine

4.    Use-dependent blockade of nerve conduction results from sodium channel binding by local anesthetics

1. in the cationic form on the inner membrane surface
2. in the uncharged form on the inner membrane surface