Chest and Abdominal Radiography Quiz

On a standard posteroanterior (PA) chest radiograph, which structure forms the right heart border?

• Aortic arch

• Left ventricle

• Right atrium

• Right ventricle

Which thoracic structure normally causes a visible silhouette along the left heart border in a PA chest X-ray?

• Pulmonary trunk

• Right atrium

• Superior vena cava

• Trachea

The carina is typically located at the level of which thoracic vertebra?

• T2

• T4–T5

• T7

• T9

On a lateral chest radiograph, which structure is best visualized anterior to the vertebral bodies and posterior to the sternum?

• Right atrium

• Trachea

• Retrocardiac space

• Retrosternal clear space

Which rib typically aligns with the inferior border of the scapula when the arms are raised during a PA chest X-ray?

• 3rd rib

• 6th rib

• 9th rib

• 12th rib

What is the most radiolucent structure seen on a chest X-ray?

• Bone

• Fat

• Soft tissue

• Air in the lungs

Which of the following best describes the radiographic appearance of the diaphragm?

• Dense white line with sharp borders

• Faint line due to low contrast

• Air-filled crescent

• V-shaped bone shadow

On a PA chest radiograph, which structure lies posterior to the trachea and may deviate in cases of a mediastinal mass?

• Esophagus

• Pulmonary artery

• Ascending aorta

• Right atrium

Which lung lobe occupies the majority of the posterior lung field in an upright lateral X-ray?

• Right upper lobe

• Right middle lobe

• Right lower lobe

• Left upper lobe

Which thoracic vertebra corresponds to the level of the sternal angle?

• T2

• T4

• T6

• T8