New York DMV Permit Written TestAlcohol and Drug LawsMedium
A driver uses over-the-counter cold medication that causes drowsiness. If they then operate a vehicle, which driving ability is most directly and severely impacted by this medication?
- AReaction time to unexpected hazards.
- BPeripheral vision acuity.
- CAbility to accurately judge distances.
- DAbility to hear emergency vehicle sirens.
Show answer & explanationAnswer & explanation
Correct answer: A. Reaction time to unexpected hazards.
Medications that cause drowsiness directly impair a driver's alertness and ability to respond quickly. This most severely impacts reaction time, making it much harder to react to sudden events or hazards on the road.
Why the other options are wrong
- B. Drowsiness does not typically affect peripheral vision directly, though overall awareness may decrease.
- C. While overall perception can be affected, drowsiness primarily impacts alertness and speed of response, not necessarily distance judgment directly.
- D. Drowsiness typically does not impair hearing sensitivity, though overall processing of sounds might be slower.
Medication Impairment (Drowsiness)
Many over-the-counter and prescription medications can cause drowsiness or fatigue, significantly impairing a driver's ability to react quickly and safely to changing road conditions.
- Common side effect of cold meds, antihistamines, pain relievers.
- Slows reaction time.
- Reduces alertness and concentration.
- Can be as dangerous as driving under the influence of alcohol.
Memory trick: Drowsy meds make your reactions slow, a hazardous drive, a dangerous show.