Injected poisons include which of the following?

• A. Drugs, insect stings, or spider bites
• B. Carbon monoxide
• C. Poisons absorbed through skin
• D. Drinking contaminated water

Answer: (A)

Injected poisons involve substances entering the body directly into tissues or the bloodstream, either through a needle or via venom from a bite or sting. Drugs given by injection and venom from insect stings or spider bites fit this route because they bypass the digestive system and go straight into the body. The other choices involve different exposure routes: carbon monoxide is inhaled, poisons absorbed through the skin are a dermal exposure, and drinking contaminated water is ingestion. So, the option describing drugs administered by injection and venom from stings or bites best fits injected poisons.