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√ Anaesthesia : Local Anaesthetics And When To Use Them

Table of local anaesthetics’ maximum safe dose and duration of action,


 





























LOCAL ANAESTHETICONSETDURATION (with adrenaline)MAXIMUM DOSE  (with adrenaline)
LidocaineRapid (5min)1-2hrs (2-4hrs)3mg (7mg/kg) *
BupivacaineSlow (>15mins)4hrs (8hrs)2mg/kg (3mg/kg)
PrilocaineMedium1.5hrs (6hrs)5mg/kg (7.5mg/kg)

* E.g. 70kg man can have 3mg/kg of lidocaine without adrenaline. Maximum dose of lidocaine therefore 210mg. 1% solution of lidocaine contains 10mg/ml. Therefore patient can have 21mls of lidocaine safely. With adrenaline this increases to 49mls (7mg/kg maximum dose therefore 490mg maximum dose)


 



Sumber aciknadzirah.blogspot.com

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