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Forensic Science: Drugs & Toxicology Flashcards

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9555772813Narcotics, examplesheroin, codeine, methadone, oxycodone0
9555772814Hallucinogens, examplesmarijuana, PCP, LSD1
9555772815Depressants, examplesAlcohol, Barbiturates, Anti-psychotics, Anti-anxiety,2
9555772816Stimulants, examplesCocaine, crack, methamphetamines3
9555772817Schedule Ino medical use high potential for abuse (heroin, LSD, Peyote, MDMA "ecstasy", bath salts4
9555772818Schedule IIseverely restricted for medical use high potential for abuse (cocaine, methamphetamine, methadone, oxycodone)5
9555772819Schedule IIIaccepted medical use moderate potential for abuse moderate to low risk of dependence (Barbiturates, steroids, ketamine)6
9555772820Schedule IVmedical use low potential for abuse and risk of dependency (xanax, valium, sleeping pills, tranquilizers)7
9555772821Schedule Vmedical purpose low potential for abuse contains limited quantities of narcotics (robitussin, Tylenol with codeine)8
9555772822presumptive testingcolor testing & microcrystalline testing9
9555772823Hallucinogens def- affect perception, thinking, self awareness, and emotions - flashbacks may occur long after the drugs wear off10
9555772824Narcotics def- addictive, sleep inducing drugs that act as central nervous system depressants and suppress pain - highly addictive11
9555772825Stimulants def- stimulate central nervous system - increase energy and alertness while decreasing appetite12
9555772826Depressants def- depress the CNS - relieve anxiety and produce sleep13
9555772827Malthus OrfilaWrote famous book on Drugs and Poisons "Father of Toxicology"14
9555772828PoisonAny substance taken in sufficient quantity to cause adverse reaction or death15
9555772829True PoisonA poison that requires a very small amount to produce adverse effects or death16
9555772830Concentration categoriesnormal, therapeutic, toxic, lethal17
9555772831LD50Lethal dose that will kill half of a population18
9555772832Familiar PoisonsCyanide, strychnine, heavy metals (arsenic, lead)19
9555772836Drug DependenceTwo types: physical and psychological20
9555772837Psychological Dependenceunderlies all drug use - produce such a good feeling that you want to continue to get that feeling - fear of withdrawal symptoms of anxiety stop the user from not using them21
9555772838Physical DependenceThere are physical factors involved - stop using the drug can cause nausea, body chills, cramps, etc - fear of these cause continued use or relapse22
9555772839Classes of DrugsNarcotics, Hallucinogens, Depressants, Stimulants, Anabolic Steroids,23
9555772840Effects of NarcoticsRelieve pain, produces sleep, euphoria feeling, sedative and depresses vital body function24
9555772841Opiates defPain-killer - comes from the gummy white substance of a poppy plant that exist in Asia or South America - that is what is used to create morphine or heroin25
9555772842Heroin defMost common opiate - created by reacting morphine with acetyl chloride - analgelsic26
9555772843Effects of HeroinProduces a high / sense of well-being and is a pain reliever - heroin becomes morphine in the brain but gets their quicker - last for 3-4 hours27
9555772844EndorphinsReward the central reward circuit and causes a release of dopamine28
9555772845Marijuana defCanabis Sative plant - contains the chemical THC which produces effects - highest concentration of it is found in the hashish which is a resin on the plant29
9555772846Effects of Marijuanaabsorbed quickly and results in excess dopamine production No physical dependence - but psychological30
9555772847Effects of LSDCreates mood change, unexpected laughing or crying, hallucinations, visual/auditory disruption31
9555772848Effects of DepressantsSlows the central nervous system32
9555772849AlcoholMost widely used drug in the western world Travels to the brain and supresses control of thoughts and muscles33
9555772850BarbituratesDowner - relaxes user Many medical uses Take it orally - enters through intestines or stomach34
9555772851HuffingSniffing material containing volatile solvents - causes extreme damage to brain and liver Freon (airplane glue) - most popular Creates euphoria with impaired speech and vision35
9555772852Effects of AmphetaminesEuphoria or well-being, no sense of appetite and no fatigue - used for weight loss and ADD medication36
9555772853Cocaine, defExtracted from coca plant Ingest through either snort or injection Stops the re-uptake of dopamine causing stimulation37
9555772854Crack, defSolid form of cocaine - created by mixing it with baking soda and water Smoke crack - gets to brain the fastest38
9555772855GHB/RoofieDepressant - accompanied by sexual assault - drug is odorless and colorless Effects - dizzy, unconcious, nausea, no memory39
9555772856Ecstasy, defHallucinogen - Club Drub-mind-altering and creates euphoria and happiness and relaxation40
9555772857Anabolic Steroidssynthetic to stimulate testosterone - two effects: 1. muscle growth 2. male traits41
9555772858Schedule Ihigh potential for abuse, no medical use and lack of safety LSD, heroin, marijuana, ecstasy42
9555772859Schedule IIhigh potential for abuse, some medical purpose and high dependence Opioids, cocaine, methadone, PCP, amphetamines, barbiturates, marijuana43
9555772860Schedule IIILess abuse, some medical purpose, and less chance of dependence physically, but high psychologically barbiturates, codeine, steroids44
9555772861Schedule IVLow potential for abuse, medical use and low chances for dependence45
9555772862Schedule VLow potential for abuse, medical use and limited chance for dependence46
9555772863Forensic Drug AnalysisTwo parts: screening and confirmation47
9555772864Color TestDrug turns a specific color when in reaction with a certain reagent - this is only useful for screening because not conclusive for results48
9555772865Microcrystalline testMore specific than color but not definitive Chemical reagent is added creates a crystalline percipitate - size and shape are unique to each drug Quick49
9555772866ChromatographySeparating and identifying different components of a mixture as the basis for a test50
9555772867Infrared SpectrophotometryInfrared - this is absolute and is like a fingerprint for a substance - produces a complex pattern of the spectrum that can be used51
9555772868Toxicologydetecting and isolating drugs or poisons to determine their effect on people Mainly deal with alcohol because that is the most widely consumed drug in the western world52
9555772869Toxicology of AlcoholKnowing how the body metabolizes and deals with alcohol is important for determining its effects, how to identify it and tools53
9555772870Elimination of alcohol or toxinsTwo ways: oxidation and excretion54
9555772871Oxidation of alcoholTakes place in the liver - combination of oxygen and enzyme that is converted in carbon dioxide and water - most alcohol goes this way55
9555772872Excretion of alcoholleaves the body unchanged through breath, sweat or urine - burn off rate varies about is about .015 w/v/hr56
9555772873Field Sobriety Tests1. Psychological test - horizontal gaze/pen light to determine if eye jerk and walk and turn/one-leg stand 2. Breath test - oxidizes alcohol in breath to create electricity57
9555772874Collection and Preservation of Blood1. Drawn under medical conditions, disinfectant, sterile needles 2. Seal airtight with coagulant (stop clotting) and preservatives (stop bacteria from altering alcohol)58
9555772875Blood-Alcohol Lawsinitially recommended BAC of .15, but realized too high so dropped it to .08 (.08 = five times more likely to get into accident)59
9555772876Constitutional IssuesFifth Amendment - self incrimination - you can refused the test, but that is implied consent and you lose your License for period of time.60
9555772877Confirmation TestsGC and MS Infrared Spectrophotometry61
9555772833Effects of Ecstasy- creates sense of empathy and insightfulness Induces the production of serotonin Increases body temperature, nausea and anxiety Often leads to seizures, muscle breakdown, kidney and liver failure, serious damage to your brain that controls memory62
9555772834Effects of CocaineHigh productivity, euphoria and loss of appetite - stimulates pleasure center at base of brain Deaths due to cardiac and respiratory arrest63
9555772835Effects of CrackEuphoria but fades quickly, after 15 seconds therefore creates extreme addiction - hard to overcome64

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