Addiction Medicine Flashcards
diagnosis of substance use disorder
2+ in 12 months:
tolerance, withdrawal, more use than intended, craving, unsuccessful effort to cut down, spend excessive time in acquisition, give up activities to use, use despite negative effects, failure to fulfill roles, use in hazardous situations, use despite social problems
how to rate severity of substance use d/o
mild: 2-3 criteria
moderate: 4-5
severe: 6+
3 C’s of addiction
craving
compulsion
loss of control
diagnostic criteria for gambling disorder
4+ in 12 mos not explained by mania:
preoccupation w gambling, inc $ gambled, unsuccessful attempts to cut down/stop, irritability when trying to stop, use to escape problem, continue to try to break even after losing, lying to reveal extent, jeopardizing or losing relationship or career, relying on others for $ issue d/t gambling
substance-induced disorders
intoxication, withdrawal, delirium, persisting dementia or amnestic d/o, psychosis, mood or anxiety d/o, sexual or sleep d/o, hallucination/ perception d/o
intoxication
reversible substance-specific syndrome d/t ingestion or exposure
maladaptive behavior or physiological change d/t effect of substance on CNS
withdrawal
reversible substance-specific syndrome d/t decline in blood level of substance
causes clinically significant distress or functional impairment
how to recognize substance-induced d/o
disturbance not better accounted for by non-substance-induced d/o (sx before substance or persist after cessation)
pathway affected by all addictive drugs except LSD
mesocorticolimbic dopaminergic reward thresholds
components of addiction and relation to brain structures
reward pathway: mesolimbic DA circuit
VTA and NAcc - acute reinforcing effects of drugs
amygdala and hippo - memory and conditioned responses linked to craving
adolescent addiction screening
CRAFFT C = car intoxicated R = relax/fit in/peer influence A = alone F = forget/blackouts F = family/friends worry T = trouble bc of use If 1+, encourage to stop. If 2+, screen for substance dependence.
questions to ask about substance use
TRAPPED Tx history Route of administration Amount Pattern (and change over time) Prior abstinence Effects (OD, withdrawal) Duration of use (inc most recent and fam hx)
medical detox goals
safe withdrawal
human withdrawal
prepare pt for ongoing tx of dependence
*does little to change long-term drug use
impact of treatment on substance use
reduces drug use 40-60%
reduces crime 40-60%
*as successful as tx for DM, asthma, HTN
5 stages of change
precontemplation (unaware or unwilling to change)
contemplation (aware of problem, no commitment to change)
preparation (intend to change)
action (*requires a lot of time and energy)
maintenance (prevent relapse, indefinite)
motivational enhancement therapy
helps people recognize and change problem
useful for people ambivalent about change
importance of motivational interviewing
resolve ambivalence about changing behavior and instill ownership of change process in pt
AA vs CBT
CBT is more effective
detection in urine of THC, amphetamine, barbs, cocaine, methadone, PCP, opiates
THC: 3-30 days amph: 2-3 d barb: 1-3 d coke: 6h-3d methadone: 7-9 d PCP: 8 d opiates: 1-3d
opiates not detected in UA
buprenorphine, oxycodone, hydrocodone, fentanyl
*can screen for these specifically
how to test for alcohol use
short t1/2 in urine but detected up to 24 h ethyl glucuronide (metabolite) may be detected up to 5d
best biomarker of alcohol relapse
CDT (carb-deficient transferrin) - synthesis disturbed by EtOH metabolites - elevated in 2 wk and normalizes in 2 wk
12m and lifetime prevalence of EtOH and drug use d/o
EtOH: 13.9 and 29.1%
drug: 3.9 and 9.9%
long-term abstinence rates with and w/o treatment
without: 20% chance
with: 50-66% chance of 1+ years
sx alcohol withdrawal
2+ of: autonomic hyperactivity (inc HR, sweating), hand tremor, insomnia, n/v, transient hallucinations, agitation or anxiety, grand mal seizures (w/i 48 h)