Which of the following identifiers is required by law to be included on a radiographic image?

• A. Location of the examination
• B. Technologist initials of identification number
• C. Right or left marker
• D. Referring physician's name

Answer: (A)

The main idea here is that radiographs must carry identifiers that tie each image to the correct exam in the patient record. Including the location of the examination on the image provides a precise link to what part of the body was imaged and which study it represents, which is essential for proper filing, retrieval, and legal documentation. This helps ensure the image cannot be confused with another study or patient and supports accurate clinical decisions.

While markers indicating right or left are crucial for interpretation and preventing laterality errors, they are not universally mandated by law as the primary identifier on the image. Likewise, technologist initials or IDs and the referring physician’s name are typically part of workflow or orders, not a legal requirement embedded on the image itself.