Trigger - poison Flashcards
isoniazid induced seizures require what
pyridoxine
calcium oxalate is associated with what poisoning
ethylene glycol/antifreeze
when do we use pyroxidine
isoniazid induced seizures
In what circumstances can activated charcoal be used after 1 hr
- toxins that slow GI transit
- toxins that form bezoars
what substances is acitvated charcoal not useful for
- metals (lithium, iron, lead)
- corrosives
- alcohols
if a patient OD’d on a cholinergic medication, you would expect their pupils to….
constrict!!! (both start w c:))
What is the CI for gastric irrigation
- absent bowel sounds
- suspected ileus/obstruction
when is multidose activated charcoal indicated
inegstions of toxic levels of:
* carbamazepine
* dapsone
* phenobarb
* quinine
* theophylline
what position should you put patients in for a gastric lavage? what do you use for a gastric lavage?
- left lateral decubitus w head of bed tilted down
- Orogastric tube
- 200ml of warm tap water put into stomach and reomoved via gravity or suction
what is the tx for moderate/severe salicylate toxicity
urinary aklalization
IV admin of sodium bicarb +/- KCl
Urine pH goal of 7.5-8.5
keep serum K+ at 4-4.5
for overdoses on drugs that are protein bound or lipid soluble, what is the most effective treatment
hemodialysis
for overdoses on drugs that are water-soluble and have low molecular weight what is the most effective treatment
Hemoperfusion
when do you use BZDs in poisoned patients?
when they have HTN and agitated.
If a patient who has been poisoned and has HTN with a risk of end organ damage what drugs should you use? what drug should you avoid?
Use:
* CCB
* Phentolamine
* Labetalol
* nitroprusside
avoid BB in sympathomimetic toxicity (idk)
