If poison spills on a person's skin or eyes, how long should you flush with lukewarm water?

Answer: C — 20 minutes

Flushing the affected area with lukewarm water for 20 minutes is recommended when dealing with poison spills on the skin or in the eyes. This duration is based on guidelines from health and safety organizations, which emphasize the importance of thoroughly washing the area to dilute and remove the harmful substance. A full 20 minutes allows enough time for the flushing action to effectively clean the area and minimize damage to the skin or eyes. It's crucial to start the flushing process immediately after exposure to ensure the best chance of reducing harm and aiding recovery. Other time frames may not provide sufficient cleaning duration to adequately address the risk posed by the poison.