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Session 22

Session 22. 60 Minutes. Overview of Signs and Symptoms. Learning Objectives. Describe the possible effects that may be observed in each major indicator of drug impairment Identify the effects that will most likely be observed with subjects under the influence of each drug category.

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Session 22

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  1. Session 22 60 Minutes Overview of Signs and Symptoms

  2. Learning Objectives • Describe the possible effects that may be observed in each major indicator of drug impairment • Identify the effects that will most likely be observed with subjects under the influence of each drug category

  3. DRE Major and General Indicators • Major Indicators: Physiological Indicators • General Indicators: Observational and Behavioral Indicators

  4. Major Physiological Indicators of Drug Impairment • Horizontal Gaze Nystagmus • Vertical Gaze Nystagmus • Lack of Convergence • Pupil Size • Reaction to Light • Pulse Rate • Blood Pressure • Body Temperature • Muscle Tone

  5. Possible Effects: HGN • Possible effects that might be observed with Nystagmus • With Horizontal Gaze Nystagmus, there are only two possible effects that might be observed

  6. Possible Effects: VGN What are the possible effects we might observe with Vertical Gaze Nystagmus? • With Vertical Gaze Nystagmus, there are also only two possible effects

  7. Possible Effects: LOC What effects might we observe with Lack of Convergence? • For Lack of Convergence, there are also only two possible effects

  8. Possible Effects: Pupil Size What effects might we observe with Pupil Size? • For Pupil Size, there are three possible effects

  9. Possible Effects: Pupil Size (Cont.) What effects might we observe with Pupils’ Reaction to light? • There are a number of effects that might be observed in the pupils’ Reaction to Light

  10. Possible Effects: Vital Signs For each of the Vital Signs, there are three possible effects: • The pulse rate, or blood pressure, or body temperature could be Normal (within the DRE average ranges)

  11. Possible Effects: Muscle Tone What effects might we observe with muscle tone? • There are three possible effects that might be seen

  12. CNS Depressant Effects

  13. CNS Stimulant Effects

  14. Hallucinogen Effects

  15. Dissociative Anesthetic Effects

  16. Narcotic Analgesic Effects

  17. Inhalant Effects

  18. Cannabis Effects

  19. QUESTIONS?

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