ACCURACY IS GUARANTEED
Texas DRE Dallas Study Guide Questions with
Detailed Verified Answers for Accuracy
In the spaces provided, list the seven DRE drug categories and
provide one example of a specific drug for each category.
✓✓ CNS Depressants
CNS Stimulants
Hallucinogens
Dissociative Anesthetics
Narcotic Analgesics
Inhalants
Cannabis
Define the term "drug" as it is used in the Drug Evaluation and
Classification Program. (Must be verbatim.)
✓✓ Any substance that, when taken into the human body, can
impair the ability of the person to operate a vehicle safely.
Which two DRE drug categories usually cause a lowering of the
pulse rate and blood pressure?
✓✓ CNS Depressants, Narcotic Analgesics
Which DRE drug categories usually cause a Lack of
Convergence?
✓✓ CNS Depressants, Inhalants, Dissociative Anesthetics,
Cannabis
, ACCURACY IS GUARANTEED
What three DRE drug categories usually cause Horizontal Gaze
Nystagmus?
✓✓ CNS Depressants, Inhalants, Dissociative Anesthetics
In blood pressure measurements, what is the higher number
called?
✓✓ Systolic
What period of time must the subject estimate during the
Modified Romberg Balance test?
✓✓ 30 seconds
The DRE average range of pupil size in room light is _____?
✓✓ 2.5 mm to 5.0 mm
What is the name of the pulse point located at the crease of the
wrist?
✓✓ Radial
Which of the following DRE drug category(s) usually slow the
reaction of the pupils to light?
A. Narcotic Analgesics
B. CNS Stimulants
C. Dissociative Anesthetics
, ACCURACY IS GUARANTEED
D. Cannabis
✓✓ B - CNS Stimulants
How many validated clues have been established for the Finger
to Nose test?
✓✓ None
Chloral Hydrate belongs to which DRE drug category?
✓✓ CNS Depressants
Which of the following is not part of a DRE drug influence
evaluation?
A. One Leg Stand
B. Breath Test
C. Finger Count
D. Officer Observations
✓✓ C - Finger Count
Where in the body is most alcohol metabolized?
✓✓ Liver
How many validated clues have been established for the Walk
and Turn test?
, ACCURACY IS GUARANTEED
✓✓ 8
What is the DRE average range of adult pulse rate?
✓✓ 60-90 bpm
Once alcohol is consumed, most passes through the stomach
into which organ where it passes quickly into the blood?
✓✓ Small Intestine
The DRE average range for the higher value of blood pressure
(Systolic) is _____?
✓✓ 120-140 mmHg
The active impairing chemical in Cannabis is _____?
✓✓ Delta-9-THC
The DRE average range for the lower value of blood pressure
(Diastolic) is _____?
✓✓ 70-90 mmHg
Which of the following drugs usually do not increase pulse
rate?
A. Heroin
B. Cannabis
Texas DRE Dallas Study Guide Questions with
Detailed Verified Answers for Accuracy
In the spaces provided, list the seven DRE drug categories and
provide one example of a specific drug for each category.
✓✓ CNS Depressants
CNS Stimulants
Hallucinogens
Dissociative Anesthetics
Narcotic Analgesics
Inhalants
Cannabis
Define the term "drug" as it is used in the Drug Evaluation and
Classification Program. (Must be verbatim.)
✓✓ Any substance that, when taken into the human body, can
impair the ability of the person to operate a vehicle safely.
Which two DRE drug categories usually cause a lowering of the
pulse rate and blood pressure?
✓✓ CNS Depressants, Narcotic Analgesics
Which DRE drug categories usually cause a Lack of
Convergence?
✓✓ CNS Depressants, Inhalants, Dissociative Anesthetics,
Cannabis
, ACCURACY IS GUARANTEED
What three DRE drug categories usually cause Horizontal Gaze
Nystagmus?
✓✓ CNS Depressants, Inhalants, Dissociative Anesthetics
In blood pressure measurements, what is the higher number
called?
✓✓ Systolic
What period of time must the subject estimate during the
Modified Romberg Balance test?
✓✓ 30 seconds
The DRE average range of pupil size in room light is _____?
✓✓ 2.5 mm to 5.0 mm
What is the name of the pulse point located at the crease of the
wrist?
✓✓ Radial
Which of the following DRE drug category(s) usually slow the
reaction of the pupils to light?
A. Narcotic Analgesics
B. CNS Stimulants
C. Dissociative Anesthetics
, ACCURACY IS GUARANTEED
D. Cannabis
✓✓ B - CNS Stimulants
How many validated clues have been established for the Finger
to Nose test?
✓✓ None
Chloral Hydrate belongs to which DRE drug category?
✓✓ CNS Depressants
Which of the following is not part of a DRE drug influence
evaluation?
A. One Leg Stand
B. Breath Test
C. Finger Count
D. Officer Observations
✓✓ C - Finger Count
Where in the body is most alcohol metabolized?
✓✓ Liver
How many validated clues have been established for the Walk
and Turn test?
, ACCURACY IS GUARANTEED
✓✓ 8
What is the DRE average range of adult pulse rate?
✓✓ 60-90 bpm
Once alcohol is consumed, most passes through the stomach
into which organ where it passes quickly into the blood?
✓✓ Small Intestine
The DRE average range for the higher value of blood pressure
(Systolic) is _____?
✓✓ 120-140 mmHg
The active impairing chemical in Cannabis is _____?
✓✓ Delta-9-THC
The DRE average range for the lower value of blood pressure
(Diastolic) is _____?
✓✓ 70-90 mmHg
Which of the following drugs usually do not increase pulse
rate?
A. Heroin
B. Cannabis
