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Forensic Science: Chapter 7 - Forensic Toxicology Flashcards

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8387211752In Western countries, the most heavily abused drug is:Alcohol0
8387219445What are factors in determining the rate at which alcohol is absorbed into the bloodstream?The total time taken to consume the drink The alcohol content of the drink The amount of alcohol consumed Stomach contents1
8387258785What CANNOT be used by the medical examiner to determine the body's alcohol content to a reasonable degree of accuracy if blood is not available?Urine2
8387273803The amount of alcohol absorbed through the stomach walls is __________ the amount of alcohol absorbed through the walls of the small intestine.Less than3
8387296151There is a ___________ relationship between the amount of alcohol in the blood and that in the alveolar breath.Direct4
8387307196During the period of absorption, the concentration of alcohol in arterial blood is __________ the concentration of alcohol in venous blood.Greater than5
8387311845A breath test reflects the alcohol concentration in the __________.Pulmonary artery6
8387318620Field sobriety tests do NOT include __________.The performance of sit ups.7
8387326277To analyze blood for alcohol, forensic labs normally use __________.Gas chromatography.8
8387333632What country uses the lowest blood alcohol concentration to determine legal impairment?Sweden9
8387346229The DOT set the maximum allowable blood alcohol concentration for commercial truck and bus drivers at:.04%10
8387353574Upon entering the bloodstream, heroin is almost immediately metabolized into:Morphine11
8387362994The toxicologist's capabilities are NOT directly dependent on the input from the:Attending physician12
8387369713A substance with a pH of 8 is likely to be:Basic13
8387374664Which drugs are acid drugs?Barbiturates and aspirin.14
8387384435Which test is NOT a widely used screening tool in the toxicology lab?TLC15
8387392866The Reinsch test would NOT be used to detect:Copper16
8387397188Carbon monoxide is toxic because it:combines hemoglobin to form carboxyhemoglobin17
8387409934The presence of high levels of carbon monoxide in the blood of a victim found at the scene of a suspicious fire is proof that the victim:perished after the fire started18
8387423082The rate of alcohol absorption on a full stomach is __________ the rate of absorption on an empty stomach.Less than19
8387436202The concentration of alcohol in an exhaled breath is in direct proportion to that of the blood of the same individual. The ratio of this relationship is closest to:1:200020
8387445402The DRE program incorporates standardized methods for examining suspects to determine:whether they are under the influence of drugs21
8387454249Alcohol is eliminated from the body chemically unchanged in:Perspiration, breath, and urine22
8387460029Alcohol is oxidized in the body primarily in:The liver23
8387467820The blood alcohol concentration level for being legally "under the influence" in most states is:0.08%24
8387473492A breath test may be used to analyze:Ethyl alcohol25
8387493211Blood is drawn from a living suspect involved in an automobile accident. If the specimen is kept unrefrigerated and at a moderately warm temperature the alcohol concentration can be expected to:Decrease with time26
8387502301The elimination of "burn off" rate of alcohol averages _________ percent w/v per hour.0.01527
8387512155The analytical technique widely used for directly measuring the amount of alcohol present in the blood is:Gas chromatography28
8387519894The following drug is NOT typically found in blood or urine:Heroin29
8387617662In the case of Schmerber v. California, blood was categorized as being:Nontestimonial evidence30
8387629327Some breath-testing devices for alcohol use __________ light to measure the quantity of alcohol trapped in a chamber.Infrared31
8387641762In forensic toxicology, all positive drug findings must be confirmed by a specific chemical test. The confirmation test of choice is:GC/MS32
8387648940A neutral substance will have a pH closest to:733
8387659109Field sobriety tests that can be employed to ascertain the degree of an individual's alcohol impairment. List them.Horizontal gaze nystagmus. Road-side breath testing One-leg stand Walk and turn34
8387674520List and describe the three stages of alcohol's fate in the human body.1.) Absorption - chemical substance enters the blood stream. 2.) Distribution - Blood carries the substance to all watery parts of the body. 3.) Elimination - Substance is excreted from the body.35
8387700839What is mouth alcohol and how does it affect the accuracy of a breath test? Name three potential sources of mouth alcohol.Alcohol that is present in the mouth. Can cause alcohol in exhaled breath to be higher than the actual blood alcohol level. Sources include: regurgitation, belching, and gargling mouthwashes containing alcohol.36
8387725884When collecting postmortem blood samples for alcohol determination, why is it best to collect a number of blood samples from different body sites?Alcohol may be generated as a result of bacterial action37
8387736032Explain the D.R.E. program.It is a program used by police officers to identify and differentiate between types of drug impairment. Drug Recognition Expert.38

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