Trans 059: Substance Related Disorders Flashcards
what is a standard drink?
12 g of absolute alcohol
Brings alcohol concentration to 0.08% or above (5 or more drinks in male, 4 or more in female in about 2 hours)
what pattern of drinking?
Binge Drinking
At least 60 grams or more of pure alcohol on at least one occasion in the past 7 days. what pattern of drinking?
Heavy Episodic Drinking
Drinks <0.01 fl oz alcohol per day
(i.e. <12 drinks in the past year)
what pattern of drinking?
abstainer
Drinks 0.22-1.00 fl oz alcohol per day
(i.e. 4-14 drinks per week)
what pattern of drinking?
Moderate drinker
Drinks 0.01-0.21 fl oz alcohol per day
(i.e. 1-13 drinks per month)
what pattern of drinking?
Light drinker
Drinks >1.00 fl oz alcohol per day
(i.e. >2 drinks per day) Males: >14 standard drinks per week/4 drinks per day Females: >7 standard drinks per week/3 drinks per day
waht pattern of drinking?
Heavy drinker
drinking occasionally with few serious consequences
Pre-alcoholic stage
drinking heavily but with few outward signs of a problem
Prodromal stage
loss of control with occasional binges
Crucial stage
primary daily activities involve getting and drinking alcohol
Chronic stage
Cage Questionnaire?
- Have you ever felt you should Cut down on your drinking?
- Have people Annoyed you by criticizing your drinking
- Have you ever felt bad or Guilty about your drinking?
- Eye opener: have you ever had a drink first thing in the morning to steady your nerves or to get rid of a hangover?
Scoring for the cage questionnaire?
Scoring: Item responses on the CAGE are scored 0 for “no” and 1 for “yes answers. A higher score is an indication of alcohol problems. A total score of 2 or greater is considered clinically significant
ideal level of blood alcohol level concentration?
Ideally aim for level 0.01-0.06.
Dysphoria (anxiety, restlessness) predominate, nausea may appear. The drinker has the appearance of a “sloppy drunk”
BAC level?
0.16-0.20
Loss of consciousness
BAC level?
0.30
Onset of coma, possible death due to respiratory depression/arrest.
BAC level?
0.40 and up
T or f? Effects are dependent on individual use, chronicity, and tolerance, and other factors
T
Effect of alcohol in GABA?
intoxication:
Chronic intake:
GABA
- Inhibitory neurotransmitters
- GABA A and GABA B receptors is affected by alcohol (sedative, anxiolytic, anticonvulsant, hypnotic actions)
Intoxication: Increase in GABA functioning
Chronic Intake: Reduction in the number of GABA A receptors
Basically alcohol is a CNS depressant, theoretically relaxes the brain by working on the GABA. Some people get pleasure. Some with numbing and feeling of euphoria.
But why some people go wild?
Alcohol also binds to GABA receptors in the prefrontal cortex (involved in judging planning, control). Its control part also becomes inhibited, so a person can become disinhibited (go wild).
effect of alcohol in dopamine?
- D1, D2, D3, D4 receptors
Intake of Alcohol: Release of dopamine in the pleasure center of the brain (mesolimbic dopaminergic pathway)
effect of alcohol in serotonin?
- Works via several receptors, especially 5HT3
Intoxication: Increased serotonin in the hippocampus and striatum
effect of alcohol in opioids?
- μ-, δ-, κ-opioid receptors
Alcohol consumption: Increased endogenous opioids and μ-opioid receptors in the VTA; Greater increase in β-endorphins after ethanol challenge in those with family history of alcohol
Effect of alcohol in norepinephrine?
Intoxication: Ethanol reduces the activity of the noradrenergic system in the locus ceruleus
diagnostic criteria of alcohol intoxication?
A. Recent ingestion of alcohol
B. clinically significant problematic behavioral or psychological changes
C. one or more of the ff signs and symptoms: slurred speech, incoor, unsteady gait, nystagmus, impairment in attention or memory, stupor or coma
D. signs and symptoms not attributable to a medical condition
alcohol withdrawal diagnostic criteria?
A. cessation
B. 2 or more of the ff, developing within several hrs to a few days after cessation
C. s/sx in B cause clinically significant distress in social etc
Earliest sign of withdrawal that occurs within 6 hours after last alcohol intake:
Tremor
alcohol related neurological disorder?
Malabsorption, Poor Nutritional Habits =
Thiamine deficiency
o Ataxia, Vestibular dysfunction, Confusion, Nystagmus, Palsy
what syndrome?
Wernicke Syndrome = ACUTE, Reversible
o Impaired recent memory, anterograde amnesia, confabulation
what syndrome?
Korsakoff syndrome = CHRONIC, 20% Recovery
- Microcephaly, craniofacial malformations, and limb and heart defects
- Short adult stature, adult maladaptive behaviors
- 35% risk of having a child with defect
- Precise mechanism unknown
what syndrome?
Fetal alcohol syndrome