Toxicology Flashcards
Define hormesis
Dose response relationship to an agent
- low dose amounts have a beneficial effect
- high dose amounts can produce functional inhibition or toxicity
List the general presentation of toxicity in patients
- variable depending on drug & dose
- AMS
- incomplete/misleading history
- unexplained abnormal VS/labs
- withdrawal will OPPOSE a toxic effect but can MIRROR other toxidromes
Describe the limitations of a urine drug screen
- detect metabolites not the actual compound
- false positives with some Rx/OTC drugs
- false negatives/undetected: K2, BZD, fentanyl
- can be fooled by water dilution, bleach, eye drops
Describe the treatment for opioid toxicity
Naloxone (antidote)
Initiate Buprenorphine if: in/post withdrawal, COWS >6
Describe the primary presentation of opioid toxicity
CNS depression, respiratory depression, miosis
Describe the etiology of acetaminophen toxicity
Describe the treatment for acetaminophen toxicity
Describe the presentation of benzodiazepine toxicity
Describe the treatment for benzodiazepine toxicity
Describe the presentation of alcohol toxicity
Describe the presentation & treatment of barbiturate toxicity
treatment: no antidote, dialyze
Describe the presentation of Z-drug toxicity
Describe the etiology of sympathomimetic toxicity
Describe the presentation of sympathomimetic toxicity
Describe the treatment of sympathomimetic toxicity
Describe the presentation of anticholinergic toxicity
Describe the treatment for anticholinergic toxicity
Describe the presentation of cholinergic toxicity
What is the antidote to cholinergic toxicity
atropine
Describe the presentation of serotonin syndrome
What is the treatment for serotonin syndrome
“benzos till they smile”
Describe the presentation of salicylate toxicity
Describe the workup for salicylate toxicity
Describe the treatment for salicylate toxicity
Describe the presentation of TCA toxicity
Describe the treatment for TCA toxicity
What hallucinogens may present with toxicity
- dextromethorphan
- LSD
- Ayahuasca