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FS_FCTOXI
Contributed by: vargas
  • 1. Which route of entry produces the fastest effect?
    Oral
    Dermal
    Inhalation
    Rectal
A) Rectal
B) Dermal
C) Oral
D) Inhalation
E) Inhalation
  • 2. Forensic toxicology is best defined as the study of:
A) Chemical reactions in the body
B) Toxic substances in relation to law
C) Drugs used in medicine
D) Poisons in industrial work
  • 3. Which professional is responsible for analyzing drugs and poisons for court purposes?
A) Medical technologist
B) Forensic toxicologist
C) Chemist
D) forensic Pathologist
  • 4. Which of the following is NOT a branch of forensic toxicology?
A) Postmortem toxicology
B) Human performance toxicology
C) Forensic drug testing
D) Clinical pharmacology
  • 5. Forensic toxicology is MOST applicable in which investigation?
A) Poisoning
B) Arson
C) Forgery
D) Theft
  • 6. A poison is a substance that
A) Is synthetic
B) Is always fatal
C) Is illegal
D) Produces harmful effects when introduced into the body
  • 7. Which is classified as a mineral poison?
A) Arsenic
B) Morphine
C) . Nicotine
D) Cocaine
  • 8. Carbon monoxide is classified as a:
A) Volatile liquid
B) Metallic poison
C) Solid poison
D) Gaseous poison
  • 9. Acute poisoning means exposure that is:
A) Long-term
B) Occupational
C) Repeated
D) Sudden and short-term
  • 10. Distribution refers to the:
A) Movement of drugs in the body
B) Removal of drugs
C) Entry of drugs into blood
D) Breakdown of drugs
  • 11. The BEST blood sample in postmortem toxicology is:
A) . Cardiac blood
B) Femoral blood
C) Pulmonary blood
D) Jugular blood
  • 12. Decomposition may cause toxicology results to be:
A) More accurate
B) Misleading
C) Faster
D) Unaffected
  • 13. Long-term drug use is best detected using:
A) Hair
B) Urine
C) Saliva
D) Blood
  • 14. Which specimen best reflects recent drug use?
A) Nails
B) Bone
C) Hair
D) Blood
  • 15. Forensic toxicology is MOST important in which crime?
A) Drug-related offenses
B) Estafa
C) Kidnapping
D) Cybercrime
  • 16. A toxicologist testifying in court is called a(n):
  • 17. A toxicologist testifying in court is called a(n):
A) Cyanide
B) Expert witness
C) Arsenic
D) Mercury
  • 18. Forensic toxicology is MOST concerned with:
A) Legal interpretation of poisons
B) Medical treatment
C) Drug marketing
D) . Chemical synthesis
  • 19. The ultimate goal of forensic toxicology is to:
A) Support justice through science
B) Discover new drugs
C) Examination of his testimony
  • 20. Most common sample for resent drugs or alcohol use
A) Tissue
B) Semen
C) Hair
D) . Blood and Urine
  • 21. The most common sample used for drug test
A) saliva
B) Hashis
C) Urine
  • 22. A condition whrein males have no spermatozoa at all in their seminal fluid
A) Aspermia
B) Oligospermia
C) Anemia
  • 23. Application of benzidine test it gives what color?
A) Blue
B) White
C) Yellow
  • 24. In what mode of administration paison by causing production of sweat
A) Anal
B) Oral
C) Inhalation
D) Injection
  • 25. Which evidence offers strongest resistance to decomposition
A) Blood
B) Semen
C) Hair
D) Urine
  • 26. A condition in which the supply of oxygen to the blood has been reduced below working levels
A) Come
B) Asphyxia
C) Homicide
D) Syncope
  • 27. The hair belong to human if the medulla is
A) one of these
B) Greater than 0.5
C) Approximately 0.5
D) Less than 0.5
  • 28. If the specimen show positive results of presence of blood .what color will appear immediately after performing quaiacum test for blood
A) Rose red
B) Intense blue
C) Beautiful Blue
  • 29. It's contains the most information about the hair
A) Head hair
B) Tip
C) Facial hair
D) Hair shaft
  • 30. 14. The medical dessection and examination of a body in order to determine the cause of death is.
A) Death Certificate
B) Cadaric Spasm
C) Exhumation
D) Autopsy
  • 31. How long after death can a toxicology report be done
A) 4 to 5 weeks
B) 5 to 7 weeks
C) 4 to 6 weeks
  • 32. This test is almost specific for human semen
A) Barberi'o test
B) Acid phosphatase test
C) Florence test
D) None of these
  • 33. Blood is red in color due to the present to:
A) Hemoglobin
B) Platelets
C) Serum
  • 34. What is the must widely used method for finding invisible blood
A) Takayama
B) Luminol Test
C) The kastle-Meyer
D) Luminol test
  • 35. The medical condition of a man whose semen condition no sperm
A) Oligospermia
B) Spermatozoa
C) Azoospermia
  • 36. What is forensic toxicology?
A) Application of toxicology to aid in crime investigation
B) Study of poisons only
C) Analysis of drugs in sports
  • 37. What is the primary goal of forensic toxicology?
A) Determine presence and effect of toxic substances in crimes
B) Identify diseases
C) Develop new medications
D) Study environmental toxins
  • 38. What types of samples are commonly analyzed in forensic toxicology
A) Food and cosmetics
B) Plants and chemicals
C) Blood, urine, hair, tissue
  • 39. What is post-mortem toxicology?
A) Investigation of workplace accidents
B) Analysis of toxic substances in deceased individuals
C) Study of poison antidotes
  • 40. What is the role of gas chromatography-mass spectrometry (GC-MS) in forensic toxicology?
A) Analyze DNA
B) Measure pH levels
C) Separate and identify volatile compounds
  • 41. What is the difference between a screening test and a confirmatory test?
A) Screening is final, confirmatory is preliminary
B) Screening is for drugs, confirmatory is for poisons
C) Screening is preliminary, confirmatory is specific
  • 42. What is the significance of the LOD (Limit of Detection) in toxicology testing?
A) Indicates maximum safe dose
B) Lowest concentration of a substance detectable
C) Measures drug efficacy
  • 43. What is a common matrix for drug testing?
A) Urine
B) Bones
C) Salaiva
D) Hair
  • 44. How does hair analysis contribute to forensic Toxicology
A) Provides historical record of drug exposure
B) Detects poison
C) measure impairment
  • 45. What is the purpose of chain of custody in toxicology testing
A) Ensure sample integrity and admissibility in court
B) to reduce cost
C) mo maximize evidence
  • 46. What is an adulterant in urine drug testing?
A) test enhancer
B) Substance added to mask test results
C) preservative
  • 47. What is the significance of metabolite analysis in toxicology?
A) Determines drug potency
B) Helps determine drug use history
C) Identifies antidotes
  • 48. How does alcohol affect the body in acute intoxication
A) Depresses CNS
B) Enhances vision
C) Stimulates CNS
  • 49. What is BAC (Blood Alcohol Concentration)?
A) Measure of liver function
B) Percentage of alcohol in blood
C) Test for drugs
  • 50. What is the Widmark formula used for?
A) Calculate drug dosage
B) Identify poisons
C) Estimate BAC
  • 51. What are common post-mortem changes affecting toxicology results?
A) Enhanced drug effects
B) Increased metabolism
C) Redistribution and decomposition
  • 52. What is the role of LC-MS/MS in forensic toxicology?*
A) Sensitive detection of drugs and metabolites
B) Detect explosives
C) Analyze metals
  • 53. How does tolerance impact toxicology interpretation?
A) Affects interpretation of drug levels and impairment
B) Reduces drug efficacy
C) Lowers drug levels
  • 54. What is the significance of the therapeutic index?
A) Measures drug potency
B) Indicates safety margin between efficacy and toxicity
C) Identifies antidotes
D) Defines LOD
  • 55. What is a poison, in toxicological terms?* A: Any medication
A) Legal drugs only
B) Only heavy metals
C) Substance causing harmful physiological effects
  • 56. The mechanism of toxicity of carbon monoxide is:
A) Pulmonary edema
B) inhibition of cytochrome oxidase
C) Formation of carboxyhemoglobin
  • 57. Formic acid is the toxic metabolite responsible for complications in:
A) Methanol poisoning
B) Acetone poisoning
C) Ethylene glycol poisoning
  • 58. The most common route of exposure in occupational lead poisoning is:
A) Ingestion
B) Inhalation
C) Skin absorption
  • 59. 1.It is a quick and simple method used to identify different types of textile fibers based when exposed to Ultraviolet Light.
A) Burning or Ignition Test
B) Microscopic Examination
C) Flourescent Test
  • 60. Animal Fibers exhibit a_________when exposed to UV light.
A) .Bluish fluorescence
B) Green fluorescencelp-045r
C) .Pink fluorescence
  • 61. A forensic scientist is analyzing DNA from a crime scene. Which of the following sources would provide the most reliable DNA sample?
A) A fingernail clipping from the suspect
B) A strand of hair without the root
C) A bloodstain on the victim's clothing
D) A bloodstain on the victim's clothing
  • 62. A forensic toxicologist is investigating a case of suspected alcohol poisoning. Which analytical method is MOST commonly used to determine the blood alcohol concentration?
A) Colorimetric assay
B) Ultraviolet-visible spectrophotometry
C) Gas chromatography
D) Immunoassay
  • 63. A forensic chemist is analyzing a sample of ink from a ransom note. Which of the following techniques would be MOST useful for comparing the ink to a reference sample?
A) Visual examination
B) Microspectrophotometry
C) Ultraviolet-visible spectrophotometry
D) Thin-layer chromatography
  • 64. A forensic toxicologist is analyzing a blood sample from a deceased individual. Initial screening indicates the presence of a benzodiazepine. To confirm the specific drug and its concentration, which technique should be used?
A) Ultraviolet-visible spectrophotometry
B) Immunoassay
C) Gas chromatography-mass spectrometry
D) Color spot test
  • 65. A forensic chemist receives a sample of white powder from a crime scene. Preliminary tests suggest the presence of an opioid. Which of the following analytical techniques would be MOST appropriate for confirming the specific type of opioid present and quantifying its concentration?
A) Immunoassay
B) Microcrystal test
C) Gas chromatography-mass spectrometry
D) Thin-layer chromatography
  • 66. A forensic scientist is examining a fiber sample found on a victim's clothing. Which of the following techniques would be MOST useful for identifying the type of fiber?
A) Infrared spectroscopy
B) Microscopic examination
C) Solubility test
D) Burn test
  • 67. A forensic chemist is analyzing a sample of lubricant from a sexual assault case. Which of the following techniques would be MOST useful for identifying the type of lubricant?
A) Visual examination
B) Gas chromatography-mass spectrometry
C) Infrared spectroscopy
D) Microscopic examination
  • 68. Which of the following is a type of biological matrix that can be used for drug testing?
A) Hair
B) Urine
C) All of the above
D) Blood
  • 69. What is the purpose of quality control in forensic toxicology?
A) To reduce the cost of testing
B) To speed up the testing process
C) To ensure the accuracy and reliability of the results
D) To minimize the amount of sample needed
  • 70. Which of the following is a common route of exposure to toxins?
A) Ingestion
B) All of the above
C) Inhalation
D) Skin absorption
  • 71. Which of the following is a limitation of immunoassay screening tests?
A) They require a large sample volume
B) They are not sensitive enough to detect low concentrations of drugs
C) They can produce false positive results
D) They are very expensive
  • 72. What is the purpose of a screening test in forensic toxicology?
A) To determine the mechanism of action of a drug
B) To confirm the identity of a drug with absolute certainty
C) To quantify the exact amount of a drug in a sample
D) To quickly identify the possible presence of drugs or poisons
  • 73. What is the term for the study of the adverse effects of chemical, physical, or biological agents on living organisms?
A) Pharmacology
B) Physiology
C) Pathology
D) Toxicology
  • 74. Which of the following is a common method for collecting breath samples for alcohol testing?
A) Breathalyzer
B) Saliva swab
C) Blood draw
D) Urine collection
  • 75. Which of the following is a common preservative used for blood samples in forensic toxicology?
A) Acetic acid
B) Sodium chloride
C) Hydrochloric acid
D) Sodium fluoride
  • 76. Which analytical technique is often used as a confirmatory test in forensic toxicology?
A) Gas chromatography-mass spectrometry
B) Immunoassay
C) Colorimetric assay
D) Thin-layer chromatograph
  • 77. What type of sample is MOST commonly used in forensic toxicology for initial screening?
A) Bone
B) Hair
C) Tissue
D) Urine
  • 78. Which of the following is NOT a primary goal of forensic toxicology?
A) Determining the effects of drugs and poisons on the human body
B) Interpreting the findings in a legal context
C) Providing medical treatment to individuals who have been poisoned
D) Identifying the presence of drugs and poisons in biological samples
  • 79. Which of the following is an example of a volatile substance that may be analyzed in forensic toxicology?
A) Diazepam
B) Morphine
C) Aspirin
D) Ethanol
  • 80. What is the role of a toxicologist in a death investigation?
A) To analyze biological samples for the presence of drugs and poisons
B) To interview witnesses
C) To determine the cause of death
D) To perform the autopsy
  • 81. What is the role of forensic toxicology in drug-facilitated sexual assault cases?
A) To detect the presence of drugs that may have been used to incapacitate the victim
B) To identify the perpetrator
C) To provide counseling to the victim
D) To determine the cause of death
  • 82. A forensic toxicologist is analyzing a blood sample for the presence of cyanide. What specific precaution is MOST important during sample collection and handling?
A) Collection in a heparinized tube
B) Collection in a tube with sodium fluoride
C) Use of a preservative to prevent degradation
D) Immediate freezing of the sample
  • 83. A person is found dead with a syringe near the body. What is the FIRST step in the toxicological analysis?
A) Obtain blood and urine samples
B) Perform a full autopsy
C) Collect and analyze the syringe contents
D) Conduct a scene investigation
  • 84. A body is exhumed several years after burial. Which tissue is MOST likely to provide reliable toxicology results?
A) Brain
B) Hair
C) Muscle
D) Liver
  • 85. What is the primary purpose of performing a drug extraction in forensic toxicology?
A) To calibrate the analytical instrument
B) To preserve the sample for future testing
C) To concentrate the drug of interest and remove interfering substances
D) To dilute the sample
  • 86. Which of the following best describes the term "pharmacokinetics"?
A) The study of the effects of drugs on the body
B) The study of drug interactions
C) The study of how the body absorbs, distributes, metabolizes, and eliminates drugs
D) The study of the chemical structure of drugs
  • 87. Which of the following is a common "false positive" result in drug screening?
A) An inconclusive result
B) A negative result when drugs are present
C) A positive result when drugs are not present
D) An accurate result
  • 88. Which type of sample is often used for workplace drug testing programs?
A) Hair
B) Blood
C) Saliva
D) Urine
  • 89. A body is found in a remote forest. Insect activity suggests the person died several weeks ago. What sample is MOST useful for toxicology testing?
A) Urine
B) Fresh blood
C) Vitreous humor
D) Bone marrow
  • 90. A body is exhumed several years after burial. Which tissue is MOST likely to provide reliable toxicology results?
A) Brain
B) Liver
C) Hair
D) Muscle
  • 91. Which analytical technique is most widely accepted as the confirmatory test in forensic toxicology?
A) Thin Layer Chromatography (TLC)
B) Gas Chromatography–Mass Spectrometry (GC-MS)
  • 92. Which poison classically causes garlic-like odor from the body?
A) Mercury
B) Lead
C) Arsenic
  • 93. Which specimen is most resistant to postmortem decomposition and useful for long-term drug detection?
A) Saliva
B) Hair
C) Urine
  • 94. Which branch of forensic toxicology deals with drug use in criminal investigations such as DUI cases?
A) Human performance toxicology
B) Fire-related deaths
C) Environmental toxicology
  • 95. Carbon monoxide poisoning is commonly associated with which type of crime?
A) Sexual assault
B) Theft
C) Fire-related deaths
  • 96. In a suspected drug-facilitated sexual assault case reported after 48 hours, the most useful sample for toxicological analysis would be:
A) hair
B) urine
C) blood
  • 97. A suspect claims he was not intoxicated during a crime. Which toxicological test result is most legally reliable to assess impairment at the time of offense?
A) Urine drug screen
B) Saliva test
C) Blood toxicology report
  • 98. In homicide investigations, forensic toxicology mainly helps to establish:
A) Cause and role of toxic substances in dea
B) Identity of the offender
C) Criminal intent
  • 99. Forensic toxicology evidence is most useful in criminology to establish:
A) Criminal intent
B) Crime scene reconstruction
C) Presence and role of toxic substances in a crime
  • 100. A delayed onset of blindness after intoxication is characteristic of poisoning by:
A) Ethanol
B) Methanol
C) Carbon monoxide
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