Question

when performing an erect anteroposterior (ap) abdomen radiograph, where should the central ray enter the midsagittal plane? at the level of the iliac crests at the level of the anterior superior iliac spine (asis) 2 inches (5 cm) inferior to the iliac crest 2 inches (5 cm) superior to the iliac crest

Explanation:

In an erect anteroposterior (AP) abdomen radiograph, the central ray should enter the midsagittal plane at the level of the iliac crests. This is a standard positioning technique to ensure proper visualization of abdominal structures.

Answer:

At the level of the iliac crests