Lignocaine

Question 1

Lignocaine Drug Class

Answer 1

Antiarrhythmic and local anaesthetic agent

Question 2

Lignocaine Action

Answer 2

Blocks sodium channels reducing ventricular excitability and pain transmission

Question 3

Lignocaine Adverse Effects

Answer 3

• Lignocaine may cause or exacerbate ventricular dysrhythmias
• In high doses may cause Neurological effects (drowsiness, disorientation, agitation, muscle twitching, fits and coma) or Cardiac effects (hypotension, bradycardia, heart blocks, and asystole

Question 4

Lignocaine Contraindications

Answer 4

Allergy or hypersensitivity

Question 5

Lignocaine Preparations

Answer 5

• Lignocaine 2% - 100mg in 5mL

- Lignocaine 1% - 20mg in 2mL

Question 6

Lignocaine Use

Answer 6

• VF or pulseless VT
• Torsades de Pointes
• Local anaesthetic prior to cannulation
• Post intraosseous procedure pain