LA complications Flashcards
where are amide LAs metabolised
liver
where are ester LAs metabolised
plasma
where is articaine metabolised
since it has both an amide and ester link both the liver and plasma
what does 2% mean
2g/100ml
what are possible systemic complications of LA
psychogenic/ stress - common in anxious ptx , palpitations cold sweats etc , manage by lying flat with legs raised perhaps a sugary drink
in pregnancy avoid felypressin
drug interactions - consult BNF
toxicity - overdose
why might prolonged anaesthesia occur
direct trauma of nerve from needle
chemical trauma - injection given directly into nerve
why might trismus occur when giving an LA injection
damage to medial pterygoid muscle
may need muscle relaxant
will present within a few hours but may last weeks/months
why might facial palsy occur when giving LA
IDB injection enters parotid gland and anaesthitises facial nerve
all facial muscles on that side will be affected
will present within minutes and will get better in around 2 hours once LA wears off
