Chapter 7 pt 1 Flashcards
what are substance use disorders
cognitive, behavioral, and physiological symptoms indicating continuing use of a substance despite significant substance-related problems
what is the DSM-5 criteria for substance use disorder
problematic pattern of substance use w. impairment or distress manifested by at least tow of the following within a 12-month period
- using substance more than originally intended
- persistent desire or unsuccessful efforts to cut down on use
- significant time spent in obtaining, using, or recovering from substnace
- craving to use substance
- failure to fulfill obligations at work, school, or home
- continued use despite social or interpersonal problems due to the substance use
- declined social, occupational, or recreational activities because of substance use
- use in dangerous situations (driving)
- continued use despite subsequent physical or psychological problem
- tolerance
- withdrawal
what is prevalence of substance use disorder
8%
more common n men than women
what are most commonly used substances
alcohol and nicotine
what is withdrawal
development of a substance-speficied syndrome due to the cessation (or reduction) of substance use
what is tolerance
need for increased amounts of the substance to achieve the desired effect or diminished effect if using the same amount of substance
what testing can be done for PCP use
UDS positive for 4-7 days
CPK and AST often elevated
how long are barbiturates in the system
short acting (pentobarbital): 24 hours long acting (phenobarbital): 3 weeks
how long are benzos in the system
short acting (lorazepam): up to 5 days long acting (diazepam): up to 30 days
what opioids require a separate panel
methadone and oxycodone (come up negative on general screen)
what should be part of every substance use disorder treatment
behavioral counseling
how does alcohol work
activates GABA, dopamine, and serotonin receptors
inhibits glutamate and voltage-gated calcium channels
what is the most common co-ingested drug in overdose
alcohol
how is alcohol metabolized
alcohol to acetaldehyde (alcohol dehydrogenase)
acetaldehyde to acetic acid (aldehyde dehydrogenase)
-upregulation of these enzymes in heavy drinkers
most adults show signs of intoxication with BAL over what
BAL > 100 mg/dL
obvious signs with BAL > 150 mg/dL