Which of the following is NOT a common setting indicated by a technique chart?

A technique chart is a vital tool in radiology, primarily used for determining the appropriate settings for taking radiographic images. This chart usually includes various parameters that need to be considered when performing radiographic procedures.

Exposure time, KVP (kilovolt peak), and distance are all essential factors that are typically documented in a technique chart. They directly influence the quality of the X-ray image and ensure accurate diagnostic results.

Exposure time refers to the duration for which the X-ray film or digital detector is exposed to radiation. KVP controls the penetrating power of the X-ray beam and affects image contrast. Distance, usually the source-to-image distance, dictates how much the X-ray beam diverges, which can also impact image quality.

In contrast, film type is not commonly indicated on a technique chart because it is more about the choice of the imaging medium than a specific setting for capturing images. While the type of film or digital sensor used can certainly affect image quality, it is typically predetermined based on the equipment and protocols of the facility rather than being adjusted for each individual case in the way that other parameters are. Therefore, it is more accurate to say that film type is not a typical setting indicated by a technique chart.