Which route of exposure refers to entry of a substance through the digestive tract?

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Study for the PMT 103A Industrial Hygiene Test. Get ready with flashcards, multiple choice questions, hints, and explanations to excel in your exam!

Multiple Choice

Which route of exposure refers to entry of a substance through the digestive tract?

Explanation:
Entry through the digestive tract is ingestion or oral exposure. This occurs when a substance is swallowed and travels down the mouth into the stomach and intestines, where it can be absorbed across the gastrointestinal lining into the bloodstream. This route differs from inhalation (through the lungs), dermal (through the skin), and intravenous (directly into the bloodstream). Ingestion is the route most closely associated with substances entering the body via the digestive system, making it the best answer here.

Entry through the digestive tract is ingestion or oral exposure. This occurs when a substance is swallowed and travels down the mouth into the stomach and intestines, where it can be absorbed across the gastrointestinal lining into the bloodstream. This route differs from inhalation (through the lungs), dermal (through the skin), and intravenous (directly into the bloodstream). Ingestion is the route most closely associated with substances entering the body via the digestive system, making it the best answer here.

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