what is the recommended source - to - image distance (sid) for an anteroposterior (ap) chest radiograph?\n30…

what is the recommended source - to - image distance (sid) for an anteroposterior (ap) chest radiograph?\n30 inches (76 cm)\n40 inches (102 cm)\n60 inches (152 cm)\n72 inches (183 cm)
Answer
Brief Explanations:
In radiography, for an anteroposterior (AP) chest radiograph, the standard - recommended source - to - image distance (SID) is 72 inches (183 cm) to reduce magnification and distortion and provide a clear image of the chest structures.
Answer:
D. 72 inches (183 cm)