This exposure occurs when a sharp object containing or contaminated with a hazardous chemical penetrates the skin.

This exposure occurs when a sharp object containing or contaminated with a hazardous chemical penetrates the skin.

• A. Injection
• B. Absorption
• C. Inhalation
• D. Contact

Answer: (A)

When a sharp object that is contaminated with a hazardous chemical pierces the skin, the chemical is delivered directly into the body through a puncture wound. This is called injection exposure, the route where the substance enters via a penetrating instrument. Absorption would involve the chemical crossing through unbroken skin or mucous membranes without a puncture. Inhalation refers to breathing in vapors or aerosols, not skin penetration. Contact exposure means touching a contaminated surface or substance without a skin puncture. So the penetrating sharp delivering the chemical fits the injection exposure route.

When a sharp object that is contaminated with a hazardous chemical pierces the skin, the chemical is delivered directly into the body through a puncture wound. This is called injection exposure, the route where the substance enters via a penetrating instrument.

Absorption would involve the chemical crossing through unbroken skin or mucous membranes without a puncture. Inhalation refers to breathing in vapors or aerosols, not skin penetration. Contact exposure means touching a contaminated surface or substance without a skin puncture. So the penetrating sharp delivering the chemical fits the injection exposure route.