Miscellaneous

Question 1

What are dosage limits for 2% lidocaine with 1:100k epinephrine? What is limiting factor (lido or epi)? What is max # of cartridges?

Answer 1

7 mg/kg (3.3 mg/lb). Limiting factor is epinephrine. 11 cartridges is limit.

Question 2

What are symptoms of local anesthesia systemic toxicity? (10)

Answer 2

Tinnitus, metallic taste, circumoral numbness, altered mental status, slurred speech, hypotension, bradycardia, seizures, ventricular arrhythmias, and cardiac arrest

Question 3

How should you manage local anaesthetic systemic toxicity?

Answer 3

1. Activate EMS
2. Ensure adequate oxygenation
3. If IV established (can treat cardiac aspects, seizures, bradycardia,