Which two positions demonstrate correct patient positioning for an anteroposterior (AP) axial foot projection?

The correct choice for demonstrating proper patient positioning for an anteroposterior (AP) axial foot projection is to have the patient in a lying and seated position.

When performing an AP axial projection of the foot, it is essential to achieve a perpendicular angle to the film and the foot's anatomy to visualize the bones and joint relationships clearly. A seated position is ideal as it allows for better access and alignment of the foot with the X-ray beam, facilitating the required angulation. This position helps the radiologic technologist ensure that the foot is adequately positioned for the projection, minimizing potential artifacts.

In the lying position, the patient can still achieve a proper alignment with the X-ray film while also allowing for appropriate support and comfort, which can reduce movement during the exposure. Appropriate support minimizes motion artifacts that might obscure the image's details, allowing for a clearer representation of the foot anatomy.

Choosing a combination of lying and seated positions optimizes imaging under safe conditions, ensuring that both comfort and exposure quality are prioritized while accommodating the standardized requirements for the AP axial projection of the foot.