Pre-DRE Review Flashcards
Frequency of polydrug use
1/3 of all toxicology results indicate 2 or more drug categories
CNS depressants
Slow down the operation of the central nervous system (brain, brain stem and spinal cord, etc.)
CNS stimulants
Speed up the operation of the central nervous system, and of the various functions controlled by the central nervous system.
Hallucinogens
Cause the nervous system to send strange or false signals to the brain.
Dissociative anaesthetics
Generally inhibit pain by cutting off or dissociating the brain’s perception of the pain.
Narcotic analgesics
All of the drugs in this category reduce the person’s reaction to pain. Also produces euphoria, drowsiness, apathy, lessened physical activity and sometimes impaired vision
Inhalants
Fumes of certain substances that produce mind altering results.
Many produce effects aimilar to CNS depressants.
A few produce stimulant like effects.
Some produce hallucinogenic effects.
Cannabis
Appears to interfere with the attebtion process. Also produces a distortion of the user’s perception of time and increases heart rate and a reddening of the conjunctivae.
What is the purpose of the Drug Influence Evaluation?
Determine if:
- the subject is impaired
- the impairment results from an injury, illness or is drug related
- if druf related, what category (categories) of drug is (are) the likely cause of the subject’s impairment
Name the 3 lighting conditions under which a DRE makes pupil size estimation.
- room light
- near total darkness
- direct light
What is the pulse?
The expansion and contraction of an artery generated by the pumping action of the heart.
What are the components of a spygmomanometer?
- manoneter
- pressure bulb
- pressure control valve
- tubes
- compression cuff
What are the sounds that we listen to in the spygmomanometer?
Korotkoff sounds
What is the DRE rangle of pulse rate?
60 to 90 beats per minute.
What is the DRE range for systolic pressure?
120 to 140 millimeters of mercury (mmHg)
