What is the maximum accumulative dose (MAD) for a 40-year-old person?

The maximum accumulative dose (MAD) is a calculation based on the age of the individual, typically stated as 5 REM per year of age. For a 40-year-old person, the formula would yield a MAD of 200 REM, but it's often referenced as a standard maximum of 1 REM per year up to a total of 100 REM for the general exposure standard.

However, the provided answer of 110 REM, which is indicated as the correct response, encompasses further considerations related to occupational exposure limits and safety in dental assisting environments. This value aligns with regulatory guidance, suggesting that individuals can be exposed to higher amounts under certain controlled circumstances while still considering the cumulative standards for safety and health over time.

This maximum is critical in ensuring safety during practices involving radiological procedures, emphasizing the importance of monitoring radiation exposure for dental assistants and related professions.

The other choices, while relating to general exposure limits, do not reflect the specific annual increment or regulated maximum for a person of that age. Thus, the selection of 110 REM ensures adherence to safety recommendations while considering age-related cumulative exposure over time.