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Lignocaine
Question | Answer |
---|---|
TYPE | 1. Local anaesthetic 2. Anti-arrhythmic |
PRESENTATION | 50 mg in 5ml – plastic ampoule |
ACTIONS | 1. Local anaesthetic effects 2. Suppresses ventricular arrhythmias Onset S/C: 1 – 4 minutes Max effect: 5 – 10 minutes |
USES: | 1. Local anaesthesia prior to invasive procedures 2. VT with cardiac output, in patients who cannot have Amiodarone 3. First flush for IO in an aware patient |
ADVERSE EFFECTS: | eff extremely unlikely in SC doses, esp if the syringe is continually aspirated. 1. C.N.S. effects stimulation followed by depressiondrowsiness, agitation, muscle twitching,seizures & coma 2 Cardiac effecthypotension, bradycardia, heart block, asystole |
CONTRA-INDICATIONS: | Known hypersensitivity |
DOSE:Local anaesthesia | Adult and Paediatric - up to 5mls subcutaneously |
VT with cardiac output: | 1 mg/kg – slow IV (over 2 minutes) |
IO in an aware patient: | Adult: 2 - 4mls first flush Paediatric: 1 - 2mls first flush |