Question

what is the recommended source - to - image distance (sid) for an anteroposterior (ap) upright abdomen radiograph?
40 inches (102 cm)
48 inches (122 cm)
60 inches (152 cm)
72 inches (183 cm)

Explanation:

In radiography, for an AP upright abdomen radiograph, the standard - recommended source - to - image distance (SID) is 40 inches (102 cm) to ensure proper image quality and minimize magnification and distortion.

Answer:

A. 40 inches (102 cm)