Lignocaine 1%

Question 1

** Lignocaine 1%**
Drug Class

Answer 1

Local Anaesthetic - Stabilises the neuronal membrane and prevents the transmission of nerve impulses

Question 2

Lignocaine 1%
Onset

Answer 2

1 minute

Question 3

** Lignocaine 1%**
Duration

Answer 3

1-10 mins

Question 4

**Lignocaine 1% **
Indications

Answer 4

• IV cannulation
• IO infusion
• Cardiac Arrest with persistent or recurrent Ventricular Fibrillation/pulseless Ventricular Tachycardia, refractory to defibrillation strategies and maximum dose of Amiodarone

Question 5

** Lignocaine 1%**
Contraindications

Answer 5

Hypersenitivity to lignocaine 1%

Question 6

** Lignocaine**
Local Anaesthesia
Dose

Answer 6

Intradermal:
0.1mL

Intraosseous:

• Small child: 10mg in 1mL
• Small adult/large child: 20mg in 2mL
• Adult: 40mg in 4mL (2 ampoules)

May be repeated at a second site if needed.

Question 7

** Lignocaine**
Cardiac Arrest

Answer 7

Adults:
* IV/IO 1mg/kg
* May be repeated once after 5 minutes if sufficient supply.

Question 8

** Lignocaine 1%.**
Side Effects

Answer 8

• Tinnitus
• Dizziness
• Anxiety
• Confusion
• Perioral numbness
• Bradycardia
• Hypotension
• Dysrhythmias
• CNS effects
• Respiratory depression