CAMRT Radiographic Procedures: Body Cavities Questions and Answers 2

Question 1

What is the correct centering for an AP supine abdomen (KUB)?

Accepted Answer

Iliac crest on the midsagittal plane

Answer

Xiphoid process

Answer

Symphysis pubis

Answer

Sternal angle

Question 2

What preparation is required for an upper GI series with barium?

Accepted Answer

NPO 6-8 hours and no smoking or gum chewing

Answer

No preparation

Answer

Laxative bowel prep

Answer

Drink 1 litre of water before

Question 3

What must a properly positioned PA chest demonstrate?

Accepted Answer

Both lung fields, costophrenic angles, heart, mediastinum, thoracic spine, and apices free from clavicular superimposition

Answer

Only lung fields and heart

Answer

Only heart and great vessels

Answer

Only lung bases and diaphragm

Question 4

What is the purpose of the erect abdomen radiograph?

Accepted Answer

Demonstrates air-fluid levels and free air under the diaphragm

Answer

No difference from supine

Answer

Only for kidney assessment

Answer

Reduces radiation dose

Question 5

What is the correct positioning for a lateral chest radiograph?

Accepted Answer

Arms raised or held forward, left side against detector, true lateral alignment

Answer

Both arms at sides, facing detector

Answer

Arms crossed, right side against detector

Answer

One arm raised, one at side

Question 6

Why must both hemidiaphragms be shown on abdominal radiographs?

Accepted Answer

Allows detection of free air and assessment of lower lobe pathology mimicking abdominal disease

Answer

No clinical significance

Answer

Only important for chest imaging

Answer

Required only post-surgery