DRE Field Sobriety & Vital Signs Flashcards
6 cards from real DRE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 DRE Field Sobriety & Vital Signs flashcards as text
Which three standardized field sobriety tests (SFSTs) are validated by NHTSA for detecting alcohol impairment?
Answer: HGN, Walk-and-Turn, One-Leg Stand
NHTSA validates the Horizontal Gaze Nystagmus (HGN), Walk-and-Turn (WAT), and One-Leg Stand (OLS) as the standardized battery for alcohol impairment detection.
During the DRE 12-step protocol, vital signs are measured including pulse rate. What is the normal resting adult pulse range?
Answer: 60–100 bpm
A normal adult resting pulse rate is 60–100 beats per minute; values outside this range may indicate drug influence on the autonomic nervous system.
An elevated body temperature above 99°F (37.2°C) in a DRE evaluation is most consistent with which drug category?
Answer: CNS stimulants
CNS stimulants such as methamphetamine and cocaine raise core body temperature (hyperthermia) through increased metabolic activity and sympathetic stimulation.
What does the Modified Romberg Balance test primarily assess in a DRE evaluation?
Answer: Internal time estimation and balance
The Modified Romberg Balance test assesses a subject's sense of balance and their ability to estimate 30 seconds, both of which can be impaired by drugs.
During the DRE muscle tone assessment, CNS depressants typically produce which finding?
Answer: Flaccid (loose) muscle tone
CNS depressants relax muscle activity, resulting in flaccid or reduced muscle tone that a DRE can detect through passive movement of the limbs.
A DRE measures a suspect's blood pressure at 160/100 mmHg. This hypertensive reading is most consistent with influence from which category?
Answer: CNS stimulants
CNS stimulants cause sympathetic nervous system activation, which elevates both systolic and diastolic blood pressure well above normal ranges.