Board Review: Local Anesthesia
Local Anesthesia
You are performing a laceration repair in the emergency department and plan to use lidocaine with epinephrine for local anesthesia. What is the maximum dose of lidocaine with epinephrine for this indication? (scroll down for the answer)
A) 3 mg/kg
B) 5 mg/kg
C) 7 mg/kg
D) 9 mg/kg
E) 11 mg/kg
The correct answer is C) 7 mg/kg.
The maximum dose of lidocaine with epinephrine is 7 mg/kg when used for local anesthesia.
Commonly Used Local Anesthetic Agents
|
|
Class |
Onset (minutes) |
Duration (minutes) |
Max Dose without Epinephrine (mg/kg) |
Max Dose with Epinephrine (mg/kg) |
|
Lidocaine |
Amide |
5 |
30-60 |
4 |
7 |
|
Bupivacaine |
Amide |
10-15 |
200-240 |
3 |
5 |
|
Mepivacaine |
Amide |
3 |
45-90 |
4 |
|
|
Procaine |
Ester |
15-20 |
40 |
7 |
|
|
Tetracaine |
Ester |
15 |
200 |
1.5 |
|
Stapczynski, J. Stephan,, and Judith E. Tintinalli. Tintinalli's Emergency Medicine: A Comprehensive Study Guide. 7th ed. New York, N.Y.: McGraw-Hill Education LLC., 2011.