CAMRT Radiography Practice Exam

What is the angle and centering for a coned AP bladder shot?

1. 10 degrees cephalad directed at ASIS

2. 15 degrees caudad directed to a point 1" above ASIS

3. 20 degrees craniad directed at the umbilicus

4. 30 degrees caudad directed to a point 2" below ASIS

The correct answer is: 15 degrees caudad directed to a point 1" above ASIS

When performing a coned AP bladder shot, the appropriate angle and centering ensure that the bladder is adequately visualized while minimizing superimposition from surrounding structures. The correct option involves angling the X-ray tube 15 degrees caudad and centering it to a point 1 inch above the anterior superior iliac spine (ASIS). This technique is used because angling the beam caudad allows for the better visualization of the bladder as it helps to open up the pelvic region. Centering the beam at a specific point above the ASIS helps to effectively capture the area of interest, which is critical for assessing any abnormalities within the bladder. Proper technique is essential to achieve optimal diagnostic images while minimizing patient exposure and the need for repeat imaging.