What level should be marked on the patient for the central ray during the oblique cervical view?

In the oblique cervical view, the central ray should be directed at the C3 level. This positioning is intended to project the cervical vertebrae clearly and visualize the intervertebral foramina, which are best seen at this level. Aiming at the C3 level allows for an optimal view of the anatomy of the cervical spine while minimizing distortion and ensuring that the structures of interest are properly centered within the radiograph.

The C3 vertebra is significant because it provides a good reference point for aligning the central ray correctly among the upper cervical vertebrae. Proper alignment is crucial for an accurate diagnosis and treatment plan, as oblique cervical views are often used to assess conditions such as cervical spondylosis or disc herniation.