RR: Drug Detection Flashcards
AOA adopted resolution June 1993 telling ODs to become teachers of law enforcement about ____?
horizontal nystagmus testing
While performing the walk and turn, how many clues are needed to demonstrate impairment?
2 clues
While performing the one leg stand, how many clues are needed to indicate a BAC of 0.08% or drug impairment?
2 clues
While checking for horizontal nystagmus, how many clues are needed to indicate impairment
4-6 clues
What are 4 ocular findings findings associated with drug use?
- lack of smooth pursuit
- Presence of talc retinopathy
- Meth in retinal tissues
- Alkaline burns from cornea from crack smoke
What 3 things depress brain and body functions such as fine and gross motor nerve systems, and gross visual mechanism systems?
- Depressants
- Inhalants
- PCP (especially this one, very pronounced)
HGN will be apparent with all but which class of drugs?
Cannabis
- found when using depressants/inhalants/PCP
Describe the features of a horizontal gaze nystagmus.
- Jerk nystagmus w/ fast and slow phase
2. Requires following a target
If nystagmus occurs before ___ degrees and alcohol is the cause, the individual has 0.08% BAC or higher.
45 degrees
The closer to the nose the nystagmus occurs, the ______ the BAC.
higher
If there’s a BAC that is less than shown impairment, what should we suspect?
- Barbiturates
- Inhalants
- PCP
If a vertical nystagmus is present, what drugs are we suspecting?
High amounts of:
- depressants
- inhalants
- PCP
Pupils will be dilated with the use of what drugs?
Quaaluds or Soma
Miotic pupils are consistent with the use of what?
narcotic analgesics
Depressants can cause what ocular sign?
Horizontal Gaze nystagmus