Which of the following is NOT listed as a route for lead exposure?

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Multiple Choice

Which of the following is NOT listed as a route for lead exposure?

Explanation:
Lead exposure happens when lead enters the body through routes that bring it inside. The classic entry paths are inhaling lead-containing dust or fumes, swallowing lead-contaminated material (ingestion), and, to a lesser extent, absorbing lead through the skin. Excretion, on the other hand, is the body's way of removing lead after it has already entered. It is not a route for lead to enter the body in the first place, so it is not a route of exposure. The other options describe ways lead can get in, while excretion describes elimination.

Lead exposure happens when lead enters the body through routes that bring it inside. The classic entry paths are inhaling lead-containing dust or fumes, swallowing lead-contaminated material (ingestion), and, to a lesser extent, absorbing lead through the skin. Excretion, on the other hand, is the body's way of removing lead after it has already entered. It is not a route for lead to enter the body in the first place, so it is not a route of exposure. The other options describe ways lead can get in, while excretion describes elimination.

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