DRE Drug Categories & Effects 3

Question 1

Which drug category is the ONLY one of the seven associated with lack of convergence as the primary eye examination finding?

Accepted Answer

Cannabis

Answer

Cannabis reliably causes lack of convergence, making this finding the most specific eye sign for that drug category.

Question 2

A subject under the influence of a CNS Stimulant would most likely exhibit which combination of findings?

Accepted Answer

Dilated pupils, rapid pulse, dry mouth

Answer

CNS Stimulants produce dilated pupils, tachycardia, hypertension, and dry mouth due to sympathomimetic activity.

Question 3

In the DRE protocol, which category of drugs is most associated with horizontal gaze nystagmus (HGN) AND vertical gaze nystagmus (VGN)?

Accepted Answer

Dissociative Anesthetics

Answer

Dissociative Anesthetics (PCP, ketamine) uniquely cause HGN, VGN, and nystagmus at maximum deviation on all four planes of gaze.

Question 4

Heroin, fentanyl, and oxycodone all belong to which DRE drug category?

Accepted Answer

Narcotic Analgesics

Answer

All opioid-based pain relievers — natural, synthetic, or semi-synthetic — are classified as Narcotic Analgesics in the DRE system.

Question 5

Which drug category is most likely when a DRE finds a subject with a body temperature of 97°F (below normal), slow respiration, and a pulse rate of 58 bpm?

Accepted Answer

Narcotic Analgesics

Answer

Narcotic Analgesics depress respiration, slow pulse, and lower body temperature, producing the classic opioid toxidrome.

(DRE) Drug Recognition Expert Certification Practice Test

(DRE) Drug Recognition Expert Certification Practice Test

DRE Drug Categories & Effects 3