X-Ray Certification Anatomy and Image Analysis 5

Question 1

The 'double bubble' sign on a neonatal abdominal radiograph indicates obstruction at which level?

Accepted Answer

Duodenum

Answer

The double bubble sign represents air in the stomach and the proximal duodenum, indicating duodenal obstruction, classically from duodenal atresia.

Question 2

On an AP pelvis radiograph, which measurement is used to assess developmental dysplasia of the hip in infants?

Accepted Answer

Hilgenreiner line with acetabular index

Answer

The Hilgenreiner line (horizontal line through the triradiate cartilages) combined with the acetabular index is used to assess acetabular development in DDH.

Question 3

Which lung lobe is separated from the right middle lobe by the minor (horizontal) fissure?

Accepted Answer

Right upper lobe

Answer

The minor (horizontal) fissure separates the right upper lobe superiorly from the right middle lobe inferiorly.

Question 4

On a lateral wrist radiograph, the normal alignment of the radius, lunate, and capitate is described as which line?

Accepted Answer

Cooney's alignment axis

Answer

Cooney's alignment axis (the longitudinal axes of the radius, lunate, and capitate) should be collinear on a true lateral wrist, indicating normal carpal alignment.

Question 5

The 'Hampton's hump' sign on a chest radiograph — a pleural-based, wedge-shaped opacity — is associated with which condition?

Accepted Answer

Pulmonary embolism with infarction

Answer

Hampton's hump is a pleural-based wedge-shaped opacity representing pulmonary infarction, classically associated with pulmonary embolism.

X-Ray Certification Practice Test

X-Ray Certification Practice Test

X-Ray Certification Anatomy and Image Analysis 5