DRUG RECOGNITION EXPERT (DRE)
EXAMINATION ACTUAL EXAM
CURRENTLY TESTING UPDATED THIS
YEAR / ALREADY GRADED A+
1. ACTUAL EXAM COVERAGE (FULL CONTENT
AREAS)
The DRE examination is based on the standardized 12-
step Drug Influence Evaluation (DIE) protocol and
associated pharmacology, physiology, and legal
application knowledge.
Exam coverage
DRE uses 12-step standardized drug impairment
evaluation.
7 drug categories produce predictable physiological
signs.
CNS depressants slow vital signs and cause horizontal
nystagmus.
, CNS stimulants elevate pulse, BP, temperature, and
dilated pupils.
Hallucinogens distort perception and pupil size
unpredictably.
Cannabis shows reddened eyes and impaired time
perception.
Dissociative anesthetics produce analgesia and
detached behavior.
Opioids cause pinpoint pupils and respiratory
depression.
Inhalants often mimic alcohol-like impairment with
chemical odor clues.
Psychophysical tests assess balance, coordination, and
divided attention.
Vital signs must be compared to baseline medical
expectations.
Medical conditions can mimic drug impairment
(critical exam trap area).
Toxicology confirms but does not replace clinical DRE
opinion.
Q1
,A driver shows horizontal gaze nystagmus, slowed
responses, and low blood pressure, but also reports recent
inhalation of paint fumes at work; which interpretation is
most accurate?
A. CNS depressants only
B. Inhalants only
C. Mixed CNS depressants and inhalants cannot be
differentiated clinically
D. Hallucinogens with alcohol interaction
Answer: C
Rationale: Overlapping CNS depression signs make it a
potential poly-drug or inhalant overlap situation requiring
caution in categorization.
Q2
A suspect presents with dilated pupils, elevated pulse,
paranoia, and also reports chronic opioid prescription use for
pain management; what is the most likely interpretation?
A. Pure opioid impairment
B. CNS stimulant intoxication possibly masking opioid use
C. Hallucinogen only
D. Cannabis withdrawal only
Answer: B
Rationale: Stimulant signs contradict opioid effects,
suggesting mixed or masking stimulant use.
, Q3
During evaluation, a subject has vertical gaze nystagmus at
high doses, rigid posture, and reports using both ketamine
and cannabis together; what is the most accurate
classification challenge?
A. Cannabis overrides dissociative effects
B. Dissociative anesthetic dominance with cannabis co-use
C. CNS depressant category only
D. Hallucinogen-only classification
Answer: B
Rationale: Dissociatives like ketamine dominate clinical
presentation even with cannabis present.
Q4
A driver shows pinpoint pupils, slow breathing, but also
agitation and sweating after alleged “energy drink overdose”;
what is most likely explanation?
A. Pure stimulant overdose
B. Opioid intoxication with stimulant masking
C. Cannabis impairment
D. Hallucinogen-induced paradox
EXAMINATION ACTUAL EXAM
CURRENTLY TESTING UPDATED THIS
YEAR / ALREADY GRADED A+
1. ACTUAL EXAM COVERAGE (FULL CONTENT
AREAS)
The DRE examination is based on the standardized 12-
step Drug Influence Evaluation (DIE) protocol and
associated pharmacology, physiology, and legal
application knowledge.
Exam coverage
DRE uses 12-step standardized drug impairment
evaluation.
7 drug categories produce predictable physiological
signs.
CNS depressants slow vital signs and cause horizontal
nystagmus.
, CNS stimulants elevate pulse, BP, temperature, and
dilated pupils.
Hallucinogens distort perception and pupil size
unpredictably.
Cannabis shows reddened eyes and impaired time
perception.
Dissociative anesthetics produce analgesia and
detached behavior.
Opioids cause pinpoint pupils and respiratory
depression.
Inhalants often mimic alcohol-like impairment with
chemical odor clues.
Psychophysical tests assess balance, coordination, and
divided attention.
Vital signs must be compared to baseline medical
expectations.
Medical conditions can mimic drug impairment
(critical exam trap area).
Toxicology confirms but does not replace clinical DRE
opinion.
Q1
,A driver shows horizontal gaze nystagmus, slowed
responses, and low blood pressure, but also reports recent
inhalation of paint fumes at work; which interpretation is
most accurate?
A. CNS depressants only
B. Inhalants only
C. Mixed CNS depressants and inhalants cannot be
differentiated clinically
D. Hallucinogens with alcohol interaction
Answer: C
Rationale: Overlapping CNS depression signs make it a
potential poly-drug or inhalant overlap situation requiring
caution in categorization.
Q2
A suspect presents with dilated pupils, elevated pulse,
paranoia, and also reports chronic opioid prescription use for
pain management; what is the most likely interpretation?
A. Pure opioid impairment
B. CNS stimulant intoxication possibly masking opioid use
C. Hallucinogen only
D. Cannabis withdrawal only
Answer: B
Rationale: Stimulant signs contradict opioid effects,
suggesting mixed or masking stimulant use.
, Q3
During evaluation, a subject has vertical gaze nystagmus at
high doses, rigid posture, and reports using both ketamine
and cannabis together; what is the most accurate
classification challenge?
A. Cannabis overrides dissociative effects
B. Dissociative anesthetic dominance with cannabis co-use
C. CNS depressant category only
D. Hallucinogen-only classification
Answer: B
Rationale: Dissociatives like ketamine dominate clinical
presentation even with cannabis present.
Q4
A driver shows pinpoint pupils, slow breathing, but also
agitation and sweating after alleged “energy drink overdose”;
what is most likely explanation?
A. Pure stimulant overdose
B. Opioid intoxication with stimulant masking
C. Cannabis impairment
D. Hallucinogen-induced paradox
