CAMRT Radiography Practice Exam

What technique is most effective for minimizing motion blur in radiographic images?

1. Increasing exposure time

2. Using a lead apron

3. Reducing patient movement through instruction

4. Increasing distance to the film

The correct answer is: Reducing patient movement through instruction

Minimizing motion blur in radiographic images is crucial for obtaining clear and diagnostic-quality images. The most effective technique for achieving this is by reducing patient movement, which can be accomplished through effective communication and instruction. By instructing patients to remain still during the exposure, radiographers can significantly decrease the likelihood of motion blur. Motion blur occurs when the patient moves during the imaging process, leading to unsharpness in the resultant image. Therefore, clear communication about the procedure and any necessary immobilization techniques can help ensure that the patient understands their role in achieving a successful image. This proactive approach is essential in providing the best possible outcome while also maintaining the comfort and safety of the patient. In contrast, other methods like increasing exposure time or distance can introduce different challenges, such as patient discomfort or increased radiation exposure, without directly addressing the root cause of motion blur, which is the movement of the patient. Using a lead apron is essential for radiation protection and does not directly prevent motion blur, making it less relevant in this context.