DRE (Drug Recognition Expert) Final Exam with Accurate Questions &
Correct Answers (Verified Answers) and Full Deep Expert Rationales |
Latest (2026/2027) Updated Version {JUST RELEASED}
1. The Unit of measure utilized to determine blood pressure is:
A) mm FE
B) PSI
C) mm HG
D) ml HG
Correct Answer: C
Expert Rationale: Blood pressure is measured in millimeters of mercury (mm
Hg). This is the standard unit of measurement for both systolic and diastolic
blood pressure readings. The abbreviation "mm HG" stands for millimeters of
mercury, which reflects the original method of measuring pressure using a
mercury column.
Test-Taking Tip: Remember that blood pressure is always measured in mm Hg
– the "Hg" is the chemical symbol for mercury.
2. The Efferent Nerves are also known as the ______ nerves.
A) sensory
B) sympathetic
C) parasympathetic
D) motor
Correct Answer: D
Expert Rationale: Efferent nerves are also known as motor nerves. They carry
,signals away from the central nervous system to muscles and glands, causing
movement or action. The term "efferent" comes from the Latin "ex" (out) and
"ferre" (to carry) – carrying signals outward.
Test-Taking Tip: E = Exit (efferent = motor = signals exit the brain). A = Arrive
(afferent = sensory = signals arrive at the brain).
3. In a blood pressure measurement, the higher number is the
______ pressure.
A) subordinate
B) diatonic
C) isobaric
D) systolic
Correct Answer: D
Expert Rationale: The higher number in a blood pressure reading is the
systolic pressure. Systolic pressure represents the pressure in the arteries when
the heart beats (contracts). The lower number is the diastolic pressure, which
represents the pressure when the heart rests between beats.
Test-Taking Tip: Systolic = top number = heart contracting. Diastolic = bottom
number = heart resting.
4. Pilorection is most likely to be observed in a subject under the
influence of ______.
A) Hashish
B) LSD
C) Crack
D) Heroin
,Correct Answer: D
Expert Rationale: Pilorection (goosebumps) is most likely to be observed in a
subject under the influence of Heroin. Heroin is an opiate that causes histamine
release, which can lead to pilorection, along with other effects like miosis,
bradycardia, and hypotension.
Test-Taking Tip: Pilorection = goosebumps = opiates (Heroin). Remember the
opiate effects: miosis, bradycardia, hypotension, ptosis, pilorection.
5. The drug Adderall is:
A) CNS Depressant
B) analog of PCP
C) Hallucinogen
D) CNS Stimulant
Correct Answer: D
Expert Rationale: Adderall is a CNS Stimulant. It is a combination of
amphetamine salts used to treat ADHD and narcolepsy. As a stimulant, it
increases heart rate, blood pressure, and pupil size, and causes hyperactivity and
talkativeness.
Test-Taking Tip: Adderall = amphetamine = stimulant. Remember the "A" in
Adderall stands for "Awake" (stimulant).
6. When examining a drug-impaired subject who is tolerant to the
effects of the specific drug, the DRE is most likely to observe:
A) no clinical or psychophysical signs of impairment
B) psychophysical signs of impairment
C) clinical and psychophysical signs of impairment
, D) psychological signs of impairment
Correct Answer: A
Expert Rationale: When a subject is tolerant to the effects of a specific drug,
the DRE is most likely to observe no clinical or psychophysical signs of
impairment. Tolerance means the subject has developed a reduced response to
the drug, so the usual signs of impairment may not be present.
Test-Taking Tip: Tolerance = no signs. If the question mentions tolerance, look
for the answer that says "no signs of impairment."
7. Which of the following drugs do NOT cause nystagmus?
A) Secobarbital
B) Marijuana
C) Librium
D) PCP
Correct Answer: B
Expert Rationale: Marijuana does NOT cause nystagmus. Nystagmus is an
involuntary jerking of the eyes, and it is caused by CNS depressants (like
Secobarbital and Librium), PCP, and alcohol. Marijuana causes lack of
convergence and vertical gaze nystagmus (VGN) in some cases, but not horizontal
gaze nystagmus (HGN).
Test-Taking Tip: Marijuana = no HGN. Remember: Cannabis causes LOC (lack
of convergence) and VGN, but NOT HGN.
8. A subject who has taken a hallucinogenic drug may display
synesthesia which is:
A) an increase in blood pressure
Correct Answers (Verified Answers) and Full Deep Expert Rationales |
Latest (2026/2027) Updated Version {JUST RELEASED}
1. The Unit of measure utilized to determine blood pressure is:
A) mm FE
B) PSI
C) mm HG
D) ml HG
Correct Answer: C
Expert Rationale: Blood pressure is measured in millimeters of mercury (mm
Hg). This is the standard unit of measurement for both systolic and diastolic
blood pressure readings. The abbreviation "mm HG" stands for millimeters of
mercury, which reflects the original method of measuring pressure using a
mercury column.
Test-Taking Tip: Remember that blood pressure is always measured in mm Hg
– the "Hg" is the chemical symbol for mercury.
2. The Efferent Nerves are also known as the ______ nerves.
A) sensory
B) sympathetic
C) parasympathetic
D) motor
Correct Answer: D
Expert Rationale: Efferent nerves are also known as motor nerves. They carry
,signals away from the central nervous system to muscles and glands, causing
movement or action. The term "efferent" comes from the Latin "ex" (out) and
"ferre" (to carry) – carrying signals outward.
Test-Taking Tip: E = Exit (efferent = motor = signals exit the brain). A = Arrive
(afferent = sensory = signals arrive at the brain).
3. In a blood pressure measurement, the higher number is the
______ pressure.
A) subordinate
B) diatonic
C) isobaric
D) systolic
Correct Answer: D
Expert Rationale: The higher number in a blood pressure reading is the
systolic pressure. Systolic pressure represents the pressure in the arteries when
the heart beats (contracts). The lower number is the diastolic pressure, which
represents the pressure when the heart rests between beats.
Test-Taking Tip: Systolic = top number = heart contracting. Diastolic = bottom
number = heart resting.
4. Pilorection is most likely to be observed in a subject under the
influence of ______.
A) Hashish
B) LSD
C) Crack
D) Heroin
,Correct Answer: D
Expert Rationale: Pilorection (goosebumps) is most likely to be observed in a
subject under the influence of Heroin. Heroin is an opiate that causes histamine
release, which can lead to pilorection, along with other effects like miosis,
bradycardia, and hypotension.
Test-Taking Tip: Pilorection = goosebumps = opiates (Heroin). Remember the
opiate effects: miosis, bradycardia, hypotension, ptosis, pilorection.
5. The drug Adderall is:
A) CNS Depressant
B) analog of PCP
C) Hallucinogen
D) CNS Stimulant
Correct Answer: D
Expert Rationale: Adderall is a CNS Stimulant. It is a combination of
amphetamine salts used to treat ADHD and narcolepsy. As a stimulant, it
increases heart rate, blood pressure, and pupil size, and causes hyperactivity and
talkativeness.
Test-Taking Tip: Adderall = amphetamine = stimulant. Remember the "A" in
Adderall stands for "Awake" (stimulant).
6. When examining a drug-impaired subject who is tolerant to the
effects of the specific drug, the DRE is most likely to observe:
A) no clinical or psychophysical signs of impairment
B) psychophysical signs of impairment
C) clinical and psychophysical signs of impairment
, D) psychological signs of impairment
Correct Answer: A
Expert Rationale: When a subject is tolerant to the effects of a specific drug,
the DRE is most likely to observe no clinical or psychophysical signs of
impairment. Tolerance means the subject has developed a reduced response to
the drug, so the usual signs of impairment may not be present.
Test-Taking Tip: Tolerance = no signs. If the question mentions tolerance, look
for the answer that says "no signs of impairment."
7. Which of the following drugs do NOT cause nystagmus?
A) Secobarbital
B) Marijuana
C) Librium
D) PCP
Correct Answer: B
Expert Rationale: Marijuana does NOT cause nystagmus. Nystagmus is an
involuntary jerking of the eyes, and it is caused by CNS depressants (like
Secobarbital and Librium), PCP, and alcohol. Marijuana causes lack of
convergence and vertical gaze nystagmus (VGN) in some cases, but not horizontal
gaze nystagmus (HGN).
Test-Taking Tip: Marijuana = no HGN. Remember: Cannabis causes LOC (lack
of convergence) and VGN, but NOT HGN.
8. A subject who has taken a hallucinogenic drug may display
synesthesia which is:
A) an increase in blood pressure
