DRE Final Knowledge Exam Questions and
Answers
Question 1
What was the landmark Arizona State Supreme Court case that established
admissibility of HGN as evidence of alcohol impairment?
A. State V. Harris
B. State V. Blake
C. State V. Loomis
D. State V. Tomanelli
Correct Answer
B. State V. Blake
Question 2
In the Los Angeles Field Validation Study, slightly more than what percentage of the
subjects examined were found to have more than one drug in their system?
A. 15%
B. 25%
C. 50%
D. 70%
Correct Answer
D. 70%
Page 1 of 28
,Question 3
When examining a drug impaired person who is tolerant to the effects of the specific
drug, which of the following is the DRE most likely to observe?
A. no signs of impairment
B. Psychological signs of impairment
C. Clinical signs of impairment
D. Clinical and Psychological signs of impairment
Correct Answer
C. Clinical signs of impairment
Question 4
The pulmonary artery is unique because it is the only artery that ____________
A. Carries blood rich in oxygen
B. Carries blood back to the heart
C. Carries blood depleted of oxygen
D. Carries blood away from the heart
Correct Answer
B. Carries blood back to the heart
Question 5
There are _____ Subcategories of CNS Stimulants?
A. 3
B. 4
C. 5
D. 6
Correct Answer
A. 3
Page 2 of 28
, Question 6
The only artery that carries deoxygenated blood is the
A. Carotid
B. Brachial
C. Pulmonary
D. Radial
Correct Answer
C. Pulmonary
Question 7
Which of the following DRE Categories will usually cause the pupils to Dilate?
A. Narcotic Analgesics
B. Cannabis
C. Hallucinogens
D. CNS Depressants
Correct Answer
A. Narcotic Analgesics
Question 8
A period of pupillary constriction followed by a period of pupillary dilation where the
pupil steadily increases in size and does not return to its original size is called ______?
A. Pupillary reflex
B. Rebound dilation
C. Pupilary unrest
D. Ocular Reflex
Correct Answer
B. Rebound Dilation
Page 3 of 28
Answers
Question 1
What was the landmark Arizona State Supreme Court case that established
admissibility of HGN as evidence of alcohol impairment?
A. State V. Harris
B. State V. Blake
C. State V. Loomis
D. State V. Tomanelli
Correct Answer
B. State V. Blake
Question 2
In the Los Angeles Field Validation Study, slightly more than what percentage of the
subjects examined were found to have more than one drug in their system?
A. 15%
B. 25%
C. 50%
D. 70%
Correct Answer
D. 70%
Page 1 of 28
,Question 3
When examining a drug impaired person who is tolerant to the effects of the specific
drug, which of the following is the DRE most likely to observe?
A. no signs of impairment
B. Psychological signs of impairment
C. Clinical signs of impairment
D. Clinical and Psychological signs of impairment
Correct Answer
C. Clinical signs of impairment
Question 4
The pulmonary artery is unique because it is the only artery that ____________
A. Carries blood rich in oxygen
B. Carries blood back to the heart
C. Carries blood depleted of oxygen
D. Carries blood away from the heart
Correct Answer
B. Carries blood back to the heart
Question 5
There are _____ Subcategories of CNS Stimulants?
A. 3
B. 4
C. 5
D. 6
Correct Answer
A. 3
Page 2 of 28
, Question 6
The only artery that carries deoxygenated blood is the
A. Carotid
B. Brachial
C. Pulmonary
D. Radial
Correct Answer
C. Pulmonary
Question 7
Which of the following DRE Categories will usually cause the pupils to Dilate?
A. Narcotic Analgesics
B. Cannabis
C. Hallucinogens
D. CNS Depressants
Correct Answer
A. Narcotic Analgesics
Question 8
A period of pupillary constriction followed by a period of pupillary dilation where the
pupil steadily increases in size and does not return to its original size is called ______?
A. Pupillary reflex
B. Rebound dilation
C. Pupilary unrest
D. Ocular Reflex
Correct Answer
B. Rebound Dilation
Page 3 of 28
