Question

what is the recommended source - to - image distance (sid) for a lateral soft tissue neck radiograph?
40 inches (102 cm)
48 inches (122 cm)
60 inches (152 cm)
72 inches (183 cm)

Explanation:

In radiography, for a lateral soft - tissue neck radiograph, the recommended source - to - image distance (SID) is 72 inches (183 cm) to reduce magnification and improve image quality.

Answer:

D. 72 inches (183 cm)