DRE Final Knowledge Exam Questions and
Verified Answers | Drug Recognition Expert
Certification Prep | A+ Graded
Question 1
Which 2 CNS depressants usually cause the pupils to Dilate
A. Soma/Diazepam
B. Methadone/XANAX
C. Methaqualone/Soma
D. Methaqualone/Seconal
Correct Answer
C. Methaqualone/Soma
Question 2
A subject under the influence of a Hallucinogen may relate that he or she hears
colors. This is an example of a phenomenon known as _________
A. Synesthesia
B. Synchronism
C. Synarthrosis
D. Synergism
Correct Answer
A. Synesthesia
Page 1 of 162
,Question 3
A chemical that passes from one nerve to the next cell and carries messages across
the gap between the 2 nerve cells is called a ______
A. Dendrite
B. Neurotransmitter
C. Axon
D. Transmitter
Correct Answer
B. Neurotransmitter
Page 2 of 162
,Question 4
Which of the following would not be considered a sympathomimetic drug?
A. Cocaine
B. Heroin
C. MDMA
D Methamphetamine
Correct Answer
B. Heroin
Question 1: In the Drug Evaluation and Classification (DEC) Program, which of
the following is the correct order of the first three steps of the 12-step DRE
process?
A. Breath alcohol test, interview of arresting officer, preliminary examination
B. Interview of arresting officer, breath alcohol test, preliminary examination
C. Preliminary examination, eye examinations, divided attention tests
D. Breath alcohol test, preliminary examination, eye examinations
CORRECT ANSWER: B. Interview of arresting officer, breath alcohol test,
preliminary examination
Rationale: The standardized 12-step DRE protocol begins with the interview of the
arresting officer, followed by the breath alcohol test, and then the preliminary
examination to establish the foundation for the remainder of the evaluation.
Question 2: Which of the following pupil size ranges is considered the average
range for room light during a DRE evaluation?
A. 1.0 to 2.5 mm
B. 2.5 to 5.0 mm
C. 5.0 to 8.5 mm
D. 6.5 to 9.0 mm
CORRECT ANSWER: B. 2.5 to 5.0 mm
Rationale: According to DRE standards, the average pupil size in room light is 2.5 to
5.0 mm; deviations outside this range may indicate the presence of certain drug
categories.
Page 3 of 162
, Question 3: Horizontal Gaze Nystagmus (HGN) is most commonly associated
with which of the following drug categories?
A. Cannabis
B. CNS Depressants, Dissociative Anesthetics, and Inhalants
C. CNS Stimulants
D. Narcotic Analgesics
CORRECT ANSWER: B. CNS Depressants, Dissociative Anesthetics, and
Inhalants
Rationale: HGN is a reliable indicator for CNS Depressants, Dissociative Anesthetics,
and Inhalants; it is not typically present with Cannabis, CNS Stimulants, or Narcotic
Analgesics under standard conditions.
Question 4: During the dark room examinations, which of the following is the
correct sequence of lighting conditions used to assess pupil size?
A. Room light, near total darkness, direct light
B. Direct light, room light, near total darkness
C. Near total darkness, room light, direct light
D. Room light, direct light, near total darkness
CORRECT ANSWER: A. Room light, near total darkness, direct light
Rationale: The standardized dark room examination sequence is room light, near
total darkness, and then direct light to evaluate pupillary response under varying
illumination conditions.
Question 5: Which of the following vital sign findings is most consistent with a
CNS Stimulant influence?
A. Bradycardia and hypotension
B. Tachycardia and hypertension
C. Normal pulse and blood pressure
D. Bradycardia and hypertension
CORRECT ANSWER: B. Tachycardia and hypertension
Page 4 of 162
Verified Answers | Drug Recognition Expert
Certification Prep | A+ Graded
Question 1
Which 2 CNS depressants usually cause the pupils to Dilate
A. Soma/Diazepam
B. Methadone/XANAX
C. Methaqualone/Soma
D. Methaqualone/Seconal
Correct Answer
C. Methaqualone/Soma
Question 2
A subject under the influence of a Hallucinogen may relate that he or she hears
colors. This is an example of a phenomenon known as _________
A. Synesthesia
B. Synchronism
C. Synarthrosis
D. Synergism
Correct Answer
A. Synesthesia
Page 1 of 162
,Question 3
A chemical that passes from one nerve to the next cell and carries messages across
the gap between the 2 nerve cells is called a ______
A. Dendrite
B. Neurotransmitter
C. Axon
D. Transmitter
Correct Answer
B. Neurotransmitter
Page 2 of 162
,Question 4
Which of the following would not be considered a sympathomimetic drug?
A. Cocaine
B. Heroin
C. MDMA
D Methamphetamine
Correct Answer
B. Heroin
Question 1: In the Drug Evaluation and Classification (DEC) Program, which of
the following is the correct order of the first three steps of the 12-step DRE
process?
A. Breath alcohol test, interview of arresting officer, preliminary examination
B. Interview of arresting officer, breath alcohol test, preliminary examination
C. Preliminary examination, eye examinations, divided attention tests
D. Breath alcohol test, preliminary examination, eye examinations
CORRECT ANSWER: B. Interview of arresting officer, breath alcohol test,
preliminary examination
Rationale: The standardized 12-step DRE protocol begins with the interview of the
arresting officer, followed by the breath alcohol test, and then the preliminary
examination to establish the foundation for the remainder of the evaluation.
Question 2: Which of the following pupil size ranges is considered the average
range for room light during a DRE evaluation?
A. 1.0 to 2.5 mm
B. 2.5 to 5.0 mm
C. 5.0 to 8.5 mm
D. 6.5 to 9.0 mm
CORRECT ANSWER: B. 2.5 to 5.0 mm
Rationale: According to DRE standards, the average pupil size in room light is 2.5 to
5.0 mm; deviations outside this range may indicate the presence of certain drug
categories.
Page 3 of 162
, Question 3: Horizontal Gaze Nystagmus (HGN) is most commonly associated
with which of the following drug categories?
A. Cannabis
B. CNS Depressants, Dissociative Anesthetics, and Inhalants
C. CNS Stimulants
D. Narcotic Analgesics
CORRECT ANSWER: B. CNS Depressants, Dissociative Anesthetics, and
Inhalants
Rationale: HGN is a reliable indicator for CNS Depressants, Dissociative Anesthetics,
and Inhalants; it is not typically present with Cannabis, CNS Stimulants, or Narcotic
Analgesics under standard conditions.
Question 4: During the dark room examinations, which of the following is the
correct sequence of lighting conditions used to assess pupil size?
A. Room light, near total darkness, direct light
B. Direct light, room light, near total darkness
C. Near total darkness, room light, direct light
D. Room light, direct light, near total darkness
CORRECT ANSWER: A. Room light, near total darkness, direct light
Rationale: The standardized dark room examination sequence is room light, near
total darkness, and then direct light to evaluate pupillary response under varying
illumination conditions.
Question 5: Which of the following vital sign findings is most consistent with a
CNS Stimulant influence?
A. Bradycardia and hypotension
B. Tachycardia and hypertension
C. Normal pulse and blood pressure
D. Bradycardia and hypertension
CORRECT ANSWER: B. Tachycardia and hypertension
Page 4 of 162
