Lignocaine

Lignocaine

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LIGNOCAINE 

• Dose of lignocaine for spinal anesthesia is 5%
• Maximum safe dose of lignocaine with adrenaline is 7 mg/kg wt
• Maximum safe dose of lignocaine for spinal anesthesia is 25-100 mg
• Concentration of lignocaine is used in epidural anaesthesia is 2%
• Maximum dose of lignocaine which can be given with adrenaline for ocular blocks is 7mg/kg
• Local anaesthetics acts by blocking nerve conduction.
• Small fibers and non myelinated fibers are blocked more easily than large myelinated fibers.
• Lignocaine is used as anesthetic and class IB antiarrhythmic in 2% jelly, 4% injection form
• 2-10% is the concentration of lignocaine used for topical anaesthesia
• High first pass metabolism is seen in Lignocaine
• Lignocaine is used in Ventricular tachycardia
• Best used in digoxin induced arrhythmia Lignocaine
• Drug of choice in lignocaine toxicity is Diazepam
• Lignocaine can be used in Ventricular fibrillation, Spinal anaesthesia & Epidural anaesthesia
• A patient selected for surgery was induced with Thiopentone iv through one of anti cubital vein complains of severe pain of whole hand. The next line of management IV lignocaine through same needle
• Lignocaine is a amide
• Lignocaine in high dose produces Convulsion, Respiratory depression & Hypotension
• Adrenaline is added to Lignocaine injection for Less bleeding at the site, Higher doses can be given & Prolonged duration of action
• Lignocaine can penetrate through mucous membrane
• Lignocaine can precipitate malignant hyperthermia
• Percentage of adrenaline with lignocaine for local infilteration is 1:50000

Exam Question

 

• Dose of lignocaine for spinal anesthesia is 5%
• Maximum safe dose of lignocaine with adrenaline is 7 mg/kg wt
• Maximum safe dose of lignocaine for spinal anesthesia is 25-100 mg
• Concentration of lignocaine is used in epidural anaesthesia is 2%
• Maximum dose of lignocaine which can be given with adrenaline for ocular blocks is 7mg/kg
• Local anaesthetics acts by blocking nerve conduction.
• Small fibers and non myelinated fibers are blocked more easily than large myelinated fibers.
• Lignocaine is used as anesthetic and class IB antiarrhythmic in 2% jelly, 4% injection form
• 2-10% is the concentration of lignocaine used for topical anaesthesia
• High first pass metabolism is seen in Lignocaine
• Lignocaine is used in Ventricular tachycardia
• Best used in digoxin induced arrhythmia Lignocaine
• Drug of choice in lignocaine toxicity is Diazepam
• Lignocaine can be used in Ventricular fibrillation, Spinal anaesthesia & Epidural anaesthesia
• A patient selected for surgery was induced with Thiopentone iv through one of anti cubital vein complains of severe pain of whole hand. The next line of management IV lignocaine through same needle
• Lignocaine is a amide
• Lignocaine in high dose produces Convulsion, Respiratory depression & Hypotension
• Adrenaline is added to Lignocaine injection for Less bleeding at the site, Higher doses can be given & Prolonged duration of action
• Lignocaine Can penetrate through mucous membrane
• Lignocaine  can precipitate malignant hyperthermia
• Percentage of adrenaline with lignocaine for local infilteration is 1:50000

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