OSMT (Ontario Society of Medical Technologists) Practice Exam

What is a characteristic of UV rays?

1. Must penetrate to be effective

2. Are for surfaces and airborne particles

3. Can cause biological damage

4. A and B only

The correct answer is: A and B only

The characteristic of UV rays that stands out is their ability to cause biological damage. UV radiation is known for its effects on living organisms, such as causing skin burns and increasing the risk of skin cancer due to DNA damage in skin cells. This understanding is essential in fields like medical technology, where exposure to UV rays can influence health outcomes. While it is true that UV rays are often used for disinfection on surfaces and can affect airborne particles, the effectiveness often relies on their ability to interact with materials rather than just their penetration depth. Thus, although both surface and airborne applications are relevant, they do not singularly define the characteristic nature of UV rays. Overall, the prominent characteristic of UV rays remains their capacity to induce biological damage, which is critical in the context of health and safety standards.