Exam 1 - Substance Abuse Flashcards
What are the three Cs of substance use disorder?
craving, control, and consequences
What is the MOA of ethanol? (3)
facilitates GABA transmission, increases dopamine, blocks NMDA receptor
What is the chronic effect of alcohol on GABA and glutamate, respectively?
reduces effectiveness of GABA receptors (down-regulation) and increases NMDA receptors (upregulation)
Which areas of the brain does alcohol affect first?
sophisticated before primitive
Explain ethanol pharmacokinetics? (3)
not protein bound, first order absorption, capacity limited metabolism
Define sensitization
increased response to a drug with repeated use
Define tolerance
diminution of drugs effect over time
What is the formula for creatinine-normalized drug level?
urine drug level/urine creatinine x 100
What is the MOA of benzodiazepines?
potentiate inhibitory action of GABA
What is the antidote for benzodiazepine overdose?
flumazenil
What is the treatment for barbiturate overdose?
supportive only
What chemical is hard to catch on toxicology exams because of its short half-life?
GHB (Xyrem - CIII)
Will naloxone reverse xylazine overdose?
NO, it is not an opioid
What is the MOA of xylazine?
central alpha-2 adrenergic agonist
What are withdrawal symptoms of opiates?
lacrimation, rhinorrhea, mydriasis, piloerection, diaphoresis, diarrhea, fever, insomnia