Which of the following best describes a bioassay?

A bioassay is specifically defined as a test used to assess the presence and concentration of radioactive materials within the human body. This method often involves analyzing biological specimens such as urine, blood, or tissue to quantify how much radioactive material has been absorbed, ingested, or inhaled. The primary purpose of conducting a bioassay is to evaluate exposure to radioactive substances, which is crucial for ensuring the health and safety of individuals working in environments where they may encounter radiation.

In the context of radiation safety, bioassays serve as an important tool for health physics professionals to monitor and assess the potential internal contamination of workers and ensure compliance with safety regulations. The ability to determine the levels of radioactive materials within the body enables effective risk management and decision-making related to occupational health and safety practices.