Forensic Science: Chapter 7 - Forensic Toxicology Flashcards
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| 8387211752 | In Western countries, the most heavily abused drug is: | Alcohol | 0 | |
| 8387219445 | What 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 contents | 1 | |
| 8387258785 | What 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? | Urine | 2 | |
| 8387273803 | The amount of alcohol absorbed through the stomach walls is __________ the amount of alcohol absorbed through the walls of the small intestine. | Less than | 3 | |
| 8387296151 | There is a ___________ relationship between the amount of alcohol in the blood and that in the alveolar breath. | Direct | 4 | |
| 8387307196 | During the period of absorption, the concentration of alcohol in arterial blood is __________ the concentration of alcohol in venous blood. | Greater than | 5 | |
| 8387311845 | A breath test reflects the alcohol concentration in the __________. | Pulmonary artery | 6 | |
| 8387318620 | Field sobriety tests do NOT include __________. | The performance of sit ups. | 7 | |
| 8387326277 | To analyze blood for alcohol, forensic labs normally use __________. | Gas chromatography. | 8 | |
| 8387333632 | What country uses the lowest blood alcohol concentration to determine legal impairment? | Sweden | 9 | |
| 8387346229 | The DOT set the maximum allowable blood alcohol concentration for commercial truck and bus drivers at: | .04% | 10 | |
| 8387353574 | Upon entering the bloodstream, heroin is almost immediately metabolized into: | Morphine | 11 | |
| 8387362994 | The toxicologist's capabilities are NOT directly dependent on the input from the: | Attending physician | 12 | |
| 8387369713 | A substance with a pH of 8 is likely to be: | Basic | 13 | |
| 8387374664 | Which drugs are acid drugs? | Barbiturates and aspirin. | 14 | |
| 8387384435 | Which test is NOT a widely used screening tool in the toxicology lab? | TLC | 15 | |
| 8387392866 | The Reinsch test would NOT be used to detect: | Copper | 16 | |
| 8387397188 | Carbon monoxide is toxic because it: | combines hemoglobin to form carboxyhemoglobin | 17 | |
| 8387409934 | The 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 started | 18 | |
| 8387423082 | The rate of alcohol absorption on a full stomach is __________ the rate of absorption on an empty stomach. | Less than | 19 | |
| 8387436202 | The 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: | 1:2000 | 20 | |
| 8387445402 | The DRE program incorporates standardized methods for examining suspects to determine: | whether they are under the influence of drugs | 21 | |
| 8387454249 | Alcohol is eliminated from the body chemically unchanged in: | Perspiration, breath, and urine | 22 | |
| 8387460029 | Alcohol is oxidized in the body primarily in: | The liver | 23 | |
| 8387467820 | The blood alcohol concentration level for being legally "under the influence" in most states is: | 0.08% | 24 | |
| 8387473492 | A breath test may be used to analyze: | Ethyl alcohol | 25 | |
| 8387493211 | Blood 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 time | 26 | |
| 8387502301 | The elimination of "burn off" rate of alcohol averages _________ percent w/v per hour. | 0.015 | 27 | |
| 8387512155 | The analytical technique widely used for directly measuring the amount of alcohol present in the blood is: | Gas chromatography | 28 | |
| 8387519894 | The following drug is NOT typically found in blood or urine: | Heroin | 29 | |
| 8387617662 | In the case of Schmerber v. California, blood was categorized as being: | Nontestimonial evidence | 30 | |
| 8387629327 | Some breath-testing devices for alcohol use __________ light to measure the quantity of alcohol trapped in a chamber. | Infrared | 31 | |
| 8387641762 | In forensic toxicology, all positive drug findings must be confirmed by a specific chemical test. The confirmation test of choice is: | GC/MS | 32 | |
| 8387648940 | A neutral substance will have a pH closest to: | 7 | 33 | |
| 8387659109 | Field 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 turn | 34 | |
| 8387674520 | List 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 | |
| 8387700839 | What 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 | |
| 8387725884 | When 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 action | 37 | |
| 8387736032 | Explain 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 |