When performing an AP cervical X-ray, the patient must be instructed to do what with their breathing?

When performing an anteroposterior (AP) cervical X-ray, the patient must be instructed to hold their breath during the exposure. This instruction is crucial because any movement, even minor, can result in image blurring, which compromises the diagnostic quality of the X-ray. Holding the breath stabilizes the cervical spine and prevents any shifting that could occur from normal breathing patterns.

By holding the breath, the radiologic technologist ensures that the structures of the cervical spine are captured clearly and accurately on the X-ray film. This practice not only enhances the clarity of the image but also allows for the best visualization of underlying anatomical structures, which is essential for proper diagnosis. Other breathing instructions, such as breathing continuously or taking quick breaths, would introduce motion into the X-ray and negatively affect the clarity of the image.