A radiographic film appears very dark. This is most likely the result of which condition?

• A. Patient moved
• B. Under-developed
• C. Overdeveloped
• D. Blank film

Answer: (C)

A radiographic film becomes very dark when development is excessive. During development, exposed silver halide crystals are reduced to metallic silver, creating density on the film. If development time, temperature, or chemical activity is too high, too much metallic silver is produced, resulting in a film that appears very dark overall. This is different from under-development, which leaves the image pale because not enough silver is formed, or from a blank film, which shows no image at all, and from movement, which causes blur rather than uniform darkness.