Exam 4 Chemistry Review/Study Questions Part 8 – Flashcards
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Which therapeutic drug has an OD that leads to severe liver necrosis due to accumulation of free radicals? |
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Acetaminophen |
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Treatment for Acetaminophen OD is effective in the first how many hours? |
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48 hours |
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Acetaminophen - _____ can predict liver toxicity based on serum levels |
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Nomogram |
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True or False: Alcohol ingestion increases toxic effects of Acetaminophen |
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True |
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Acetaminophen OD - Samples should be drawn how many hours post ingestion and monitored over a 24 period? |
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4 hours |
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What else should be monitored when an Acetaminophen OD occurs? |
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Liver enzymes, bilirubin and PT |
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What are the side effects of Salicylate (Aspirin)? |
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GI irritation, disturbed platelet aggregation, tinnitus |
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What are 2 Other OTC NSAIDs? |
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Ibuprofen Naproxen |
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____ is a possibility for any patient who is unconscious for unexplained reasons |
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OD |
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True or False: Because most drugs clear quickly, screening tests can only detect recent abuse |
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True |
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Name 7 Drugs with a High Potential for Abuse |
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Tranquilizers Amphetamine/Methamphetamine Cannabinoids Cocaine Opiates Hallucinogens Anabolic Steroids |
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What are the following consistent with: CNS depressants/ anti-anxiety drugs Barbiturates (Pentobarb, phenobarb) Benzodiazepines (Valium, Librium, Ativan, Prozac) |
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Tranquilizers (Sedative-Hypnotics) |
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What does OD of Tranquilizers (Sedative-Hypnotics) cause? |
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lethargy, slurred speech, stupor, respiratory arrest, coma |
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What are the following consistent with: CNS stimulants (bennies, uppers, speed) Used to treat narcolepsy and ADD Causes talkativeness, restlessness, tremors, psychosis |
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Amphetamine/Methamphetamine |
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What are the following consistent with: Psychoactive compounds (primarily THC) in marijuana and hashish Lipophilic = accumulation in brain/fat cells; slower elimination Detected up to 5 days after single use; one month+ in chronic use Alters mood, perception, psychomotor skills, short-term memory; paranoia |
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Cannabinoids |
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What are the following consistent with: Local anesthetic CNS stimulator: elicits a sense of excitement and euphoria |
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Cocaine |
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What are the following consistent with: Used as analgesics, sedatives and anesthesia Derived from opium poppy |
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Opiates |
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Amphetamine/Methamphetamine - A llergy meds contained the chemically related _____ & _______ |
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ephedrine & pseudoephedrine |
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___________ - amphetamine designer derivative |
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MDMA (Ecstasy) |
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Cannabinoids - what does the current method distinguish between? |
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Direct Use and Passive Exposure |
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Marinol and medical marijuana are used to treat what? |
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anorexia, glaucoma, pain, and nausea associated with chemo |
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OD of Cocaine is associated with what? |
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Seizures and heart attacks |
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What are the following consistent with: LSD, PCP (Phencyclidine), Mescaline May cause both stimulant and depressant effects Hostility, paranoia, flashbacks |
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Hallucinogens |
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What are the following consistent with: Related to testosterone; originally developed to treat male hypogonadism Increases muscle mass and athletic performance Hepatitis, atherosclerosis, stroke, MI, sterility, impotence Potency of black market drugs is variable |
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Anabolic Steroids |
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List 3 Natural Opiates |
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morphine, codeine, opium |
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List 3-4 Natural Modified Opiates |
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Heroin, Oxycodone/Dilaudid, Percodan |
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List 2 Synthetic Opiates |
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Demerol, Darvon |
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What is an OD of Opiates tied to? |
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Respiratory acidosis and heart failure (myoglobin, CKMB and TnI) |
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Which Drug with a high potential for abuse was originally developed to treat male hypogonadism? |
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Anabolic Steroids |
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Which Metal is consistent with the following: Naturally occurring and man - made: insecticides, herbicides, and treated lumber Disrupts many proteins GI bleeding, shock and convulsions |
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Arsenic |
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Which Metal is consistent with the following: Commercial and art paints; in pipes and on highways from car emissions Most toxicity is from ingestion of contaminated foods Inhibits heme and Vit D synthesis Causes anemia (hypoxia), liver and kidney injury, bone disorders,brain dysfunction, birth defects, porphyria |
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Lead |
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Which Metal is consistent with the following: Most toxicity is from contaminated foods (fish/seafood) or industrial Binds / alters proteins Bloody diarrhea, behavioral changes, loss of balance If patient survives initial poisoning, renal failure often follows |
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Mercury |
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Tests to determine adulteration. General rules for urine sample validity: Temperature |
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91-97 degrees F |
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Tests to determine adulteration. General rules for urine sample validity: Creatinine |
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Positive |
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Tests to determine adulteration. General rules for urine sample validity: SG |
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1.003-1.035 |
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Tests to determine adulteration. General rules for urine sample validity: pH |
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4-10 |
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Tests to determine adulteration. General rules for urine sample validity: Nitrite |
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Negative |
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Tests to determine adulteration. General rules for urine sample validity: Glutaraldehyde |
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Negative |
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What does lead inhibit? |
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Heme and Vitamin D Synthesis |
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What does Lead Poisoning cause? |
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Anemia (hypoxia), liver and kidney injury, bone disorders,brain dysfunction, birth defects, porphyria |
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Most Mercury Toxicity is from where? |
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Contaminated foods (fish/seafood) or industrial |
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What does Mercury do? |
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Binds/Alters Proteins |
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If patient survives initial Mercury Poisoning, what often follows? |
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Renal Failure |
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Which Misc. Toxic Agent is associated with the following: Incomplete combustions of fuels Binds to hemoglobin (replaces O2) to form carboxyhemoglobin Severe hypoxia, primarily affecting heart and brain (lactic acidosis) |
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Carbon Monoxide |
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Which Misc. Toxic Agent is associated with the following: Gas or solid: insecticides, rat poison, burning insulation Binds to heme iron and disrupts production of cellular ATP Respiratory arrest, seizures, coma, death |
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Cyanide |
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Which Misc. Toxic Agent is associated with the following: Pesticides (contaminated food/ industrial exposure) Affects nerve synapses, causing salivation, involuntary urination and defecation, muscle cramps, respiratory failure |
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Organophosphates |
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What does Carbon Monoxide bind to? |
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Hemoglobin |
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When Carbon Monoxide binds to hemoglobin what does it replace? |
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O2 |
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When Carbon Monoxide binds to hemoglobin what does it form? |
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Carboxyhemoglobin |
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What does Cyanide bind to? |
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Heme Iron |
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When Cyanide binds to Heme Iron, what does it disrupt? |
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Production of cellular ATP |
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What do Organophosphates affect? |
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Nerve Synapses |
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When Organophosphates affect nerve synapses, what does this cause? |
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Salivation, involuntary urination and defecation, muscle cramps, respiratory failure |
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Hair can detect alcohol and drugs for how long after exposure? |
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Months |
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True or False: Hair AND Saliva are Impossible to adulterate |
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True |
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What is considered the best specimen for alcohol testing? |
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Blood |
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Other than alcohol, what else can Saliva detect? |
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Drugs of abuse |