ARIDE Pupilometers Sample 1-24.pdf

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Attached to
ARIDE PUPILOMETERS
Solicitation number
RFQ-171-260000000042-1
Issued by
Grand Traverse County, Lansing City, Michigan

About this file

This document is an educational resource developed by the Michigan Office of Highway Safety Planning in conjunction with the U.S. Department of Transportation. It serves as a reference guide for identifying signs and symptoms of drug influence across seven substance categories: CNS depressants, CNS stimulants, hallucinogens, dissociative anesthetics, narcotic analgesics, inhalants, and cannabis. The material presents a comprehensive chart correlating physical indicators—including horizontal gaze nystagmus (HGN), vertical gaze nystagmus (VGN), lack of convergence, and pupil size—with specific drug categories. The guide documents observable behavioral and physical manifestations for each substance type, such as slurred speech and drowsiness for CNS depressants, restlessness and body tremors for CNS stimulants, and bloodshot eyes and marijuana odor for cannabis use. The resource includes a pupil size reference scale ranging from 1.0 to 9.0 under varying lighting conditions (direct light, room light, and near total darkness) to assist in standardized assessment.

The guide emphasizes compliance with Michigan Compiled Law 257.625, which prohibits operation of vehicles on highways and publicly accessible areas by any person operating while intoxicated, regardless of licensure status. This material was developed as an educational tool for law enforcement, traffic safety personnel, and other officials responsible for identifying impaired drivers. The document provides detailed symptom lists organized by substance category to facilitate rapid and accurate field assessment of potential drug influence in driving situations. No pricing, contract terms, renewal options, or procurement information is associated with this educational resource.

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Text version

1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 7.0

NEAR TOTAL DARKNESS

DIRECT LIGHT

ROOM LIGHT

7.5 8.0 8.5 9.0

Drug Influence Signs/Symptoms

CNS

Depressants

CNS

Stimulants Hallucinogens Dissociative

Anesthetics Narcotic

Analgesics Inhalants Cannabis

HGN Present None None Present None Present None

VGN (High Dose) Present

None None Present None (High Dose) Present

None

Lack of Convergence

Present None None Present None Present Present

Pupil Size (1)Normal Dilated Dilated Normal Constricted (2)Normal (3)Dilated

Additional Drunk-like Behavior

Agitated Fidgety

Distorted Sensory

Perception

Rigid Muscles, Blank Stare

Slow and Deliberate

Movements

Odor and Evidence of

Use

Impaired Ability to Maintain Attention

(1) Soma, Quaaludes, and some anti-depressants usually dilate pupils. (2) Normal but may be dilated. (3) Pupil size possibly normal.

CNS Depressants

•Uncoordinated
•Disoriented
•Sluggish
•Thick, slurred

speech

• Drunk-like behavior

•Gait ataxia
•Drowsiness
•Droopy eyes
•Fumbling

CNS Stimulants

•Restlessness
•Body tremors
•Excited
•Euphoric
•Talkative
•Exaggerated reflexes
•Anxiety
•Grinding teeth
•Redness to nasal

area

•Runny nose
•Loss of appetite
•Insomnia
•Hyper alertness
•Dry mouth
•Irritability
•Paranoid behavior

Hallucinogens

•Dazed appearance
•Body tremors
•Synesthesia
•Hallucinations
•Paranoid behavior
•Uncoordinated
•Nausea
•Disoriented
•Difficulty in speech
•Perspiring
•Poor perception of

time and distance

•Memory loss
•Disorientation
•Flashbacks

Dissociative Anesthetics

•Perspiring
•Warm to the touch
•Blank stare
•Difficulty in

speech

• Incomplete verbal responses

•Repetitive speech
•Increased pain

threshold

•Cyclic behavior
•Confused
•Agitated
•Hallucinations
•Possibly violent

and combative

•Chemical odor
•“Moon walking”

Narcotic

•Droopy eyelids
•“On the nod”
•Drowsiness
•Depressed

reflexes

• Low, raspy, slow speech

•Dry mouth
•Facial itching
•Euphoria
•Fresh puncture

marks

•Nausea
•Injection/track

marks

Inhalants

• Residue of substance around nose and mouth

•Odor of substance
•Possible nausea
•Slurred speech
•Disorientation
•Confusion
•Bloodshot,

watery eyes

• Lack of muscle control

•Flushed face
•Non-

communicative

• Intense headaches

Cannabis

•Bloodshot eyes
•Odor of marijuana
•Marijuana debris in

mouth

•Body tremors
•Eyelid tremors
•Relaxed inhibitions
•Increased appetite
•Impaired perception

of time and distance

•Disorientation
•Possible paranoid

behavior

Per MCL 257.625 A person, whether licensed or not, shall not operate a vehicle upon a highway or other place open to the general public or generally accessible to motor vehicles, including an area designated for the park-ing of vehicles, within this state if the person is operating while intoxicated.

This material was developed through a project funded by the Michigan Office of Highway Safety Planning and the U.S. Department of Transportation.

File details come from the government source that posted it. Updated .