Anaestricks
Local Anaesthetic Dose

An easy way to remember the maximum dose of local anaesthetic in mililitres is: 1mL/kg of 0.25% bupivacaine/levobupivacaine/ropivacaine.

Surgeons often ask how much they can infiltrate safely and it’s easier to calculate this volume in your head, rather than calculate mg/kg and then convert to volume.

For example, a 15kg child could have up to 15mL of 0.25% bupivacaine, or 7.5mL 0.5% bupivacaine.  

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