Chapter 11 - substance related dxs Flashcards
Psychological dependence def? aka?
The urge to take psychoactive substances for reasons like…
- alleviating negative moods
- avoiding withdrawal symptoms
- preparing for an activity
aka craving
Physiological dependence def?
- tolerance & withdrawal are signs of physiological dependence
- characterized by tolerance to withdrawal symptoms
Tolerance def?
Nervous system becomes less sensitive to the physiological effects of the chemical over time
3 mechanisms of tolerance?
- metabolic
- pharmacodynamic (aka down regulation)
- behavioral conditioning
metabolic tolerance?
- repeated exposure causes your liver to produce more enzymes that metabolize it
- metabolize faster –> consume more to experience the same high
pharmacodynamic tolerance?
- receptors in the brain adapt to continued presence of the drug
- receptors are less sensitive to drug
- need more drug to get same high
behavioral conditioning mechanisms for tolerance?
- cues associated with drug elicit response opposite in direction of natural effect of drug
- competes with drug response
- need more of drug
Withdrawal def? ex?
- Physiological symptoms a person experiences when drug use is stopped
ex.
- tremors, sweating, nausea, anxiety, insomnia, convulsions, hallucinations
Alcohol withdrawal derilium?
- severe cases, heavy use long term
- try to stop cold turkey
- agitated, confused, psychotic symptoms, temporary or permanent cognitive problems
Drug of abuse / psychoactive substance def?
A chemical substance that alters mood, changes perception, or changes brain functioning
Addictive potential def?
- likelihood that a person who has used the substance will become addicted to / dependent on the substance
- factors specific to a drug
3 factors considered for addictive potential?
- How the drug works
- Dosage to achieve desired effect and its route of administration
- Potential for harm:
→ how difficult is it to stop
→ likelihood of developing problems
4 symptom categories? (divide the symptom criteria in DSM5)
A. impaired control
B. social impairment
C. risky use
D. pharmacological criteria
9 substance types
Alcohol
Tobacco
Caffeine
Cannabis
Hallucinogens
Inhalants
Opioids
Sedatives
Stimulants
Can have abuse disorder for everything except caffeine
Meth: type of drug? how addicting? what’s the high like?
- stimulant
- highly addicting
→ possibly more than cocaine - quick, long-lasting high
→ Coming down: feel weak, lethargic, depressed
Meth: long term use? treatment?
Long term:
- structural changes in brain
- Psychiatric problems associated
- Problems with learning and memory
- Mental health problems like paranoid thinking and hallucinations
Highly resistant to treatment:
- 1/3 use again 6 month later
- 1/2 use again 2 yr later
Stimulants and cocaine: activate ____?
sympathetic nervous system
Stimulants and cocaine: one important risk of long term use? withdrawal? reactions?
- risk of psychotic break (mostly for users who are predisposed)
- DON’T typically experience much withdrawal symptoms
- most common reaction is depression
Opioids: what are they? what’s the high like?
- Synthetic versions of opiates
- Dream-like euphoria, pleasure rush (very short lasting)
- Long term negative changes in mood/emotion
Opioids: relationship to heroin use?
- 4-6% of people who misuse prescription painkillers go to heroin
- 80% of people who use heroin first abused prescription painkillers
What counties prescribe/ receive the most opioids?
- Smaller cities or larger towns
–> Not the most urban areas - White residents
- More dentists and physicians
- More uninsured / unemployed
- More residents who have diabetes, arthritis, or a disability
Fentanyl: what is it? origin? why’s it a problem?
- synthetic opioid drug
- FDA approved analgesic & anesthetic
- more potent than heroin & morphine
–>100x stronger than morphine - involved in ~85% of overdose deaths
Over ___% of overdose deaths had at least one potential opportunity for intervention
3/5 (60%)
Sedatives/hypnotics/anxiolytics: Drug families aka? What are they used for? What’s the “high” like?
- barbiturates & benzos
- Anxiolytic = tranquilizers
→ used to decrease anxiety - hypnotics → sleep
- sedative → calm, reduce excitement
- acute effects similar to alcohol intoxication
- can produce “rage reaction” (hostile/aggressive behavior)
Sedatives/hypnotics/anxiolytics: long term problems / withdrawal?
- discontinuance syndrome:
→ original anxiety symptoms return and worsen
possible withdrawal symptoms:
- irritability, sleep problems, paranoia, restlessness, etc
- withdrawal LESS likely if discontinued GRADUALLY
Cannabis: acute effects of high? long term?
short:
- well-being & happiness
- temporal disintegration
→ trouble retaining & organizing information
long:
- cognitive / neuropsychological functioning decline
- attention, learning, decision making problems
Cannabis: tolerance/withdrawal?
tolerance:
- controversial, not a lot of evidence
- anecdotal evidence for reverse tolerance
withdrawal:
- unlikely for occasional use / low dose
- possible for continuous, high dose
- symptoms: irritability, restlessness, insomnia