Which of the following is considered involuntary motion during an x-ray procedure?

Involuntary motion during an x-ray procedure refers to movements that a patient does not consciously control. Tremors fall into this category because they are typically caused by conditions such as Parkinson's disease, neurological issues, or anxiety, leading to rhythmic shaking that the patient cannot stop. This type of movement can negatively impact the quality of the x-ray image because it leads to blurring or indistinctness, making it difficult for radiologists to interpret the results accurately.

In contrast, voluntary muscle contractions and patient movement due to discomfort are actions that involve some level of conscious control and reaction. For instance, if a patient feels discomfort during the x-ray, they might shift to alleviate that feeling, which would be considered voluntary movement. Understanding the distinction between involuntary and voluntary motion is essential for radiologic technicians to ensure clear imaging and optimal patient care.