When a film appears fogged, which factors should be checked?

When a film appears fogged, it is essential to check several factors that could contribute to the issue. Storage conditions can greatly affect the film's sensitivity and can lead to fogging if the film has been exposed to heat, humidity, or radiation before use. Adequate safe lighting is crucial as improper lighting can expose the film unintentionally, resulting in fogged images. Lastly, the expiration date of the film is important because outdated film may have degraded qualities that affect its performance, making it more prone to fogging.

These elements work together to ensure the integrity of radiographic films and are critical in identifying the source of fogging. Taking all these factors into account helps maintain film quality and ensures accurate diagnostic results, which is why this choice is the most comprehensive in addressing potential causes of film fogging.