SPEX SPEX Radiology and Imaging

Question 1

Which imaging modality is the first-line choice for evaluating a suspected acute ischemic stroke?

Accepted Answer

Non-contrast CT of the head

Answer

MRI with diffusion-weighted imaging

Answer

CT angiography of the brain

Answer

Cerebral arteriography

Question 2

A chest X-ray shows a 'Hampton's hump' sign. Which diagnosis does this suggest?

Accepted Answer

Pulmonary embolism with infarction

Answer

Pneumonia

Answer

Pleural effusion

Answer

Pneumothorax

Question 3

Which sign on chest X-ray indicates tension pneumothorax requiring immediate intervention?

Accepted Answer

Tracheal deviation away from the affected side

Answer

Blunting of the costophrenic angle

Answer

Increased opacity of the affected lung

Answer

Bilateral hilar enlargement

Question 4

What does the 'double bubble' sign on abdominal X-ray in a neonate indicate?

Accepted Answer

Duodenal atresia

Answer

Meconium ileus

Answer

Malrotation with midgut volvulus

Answer

Hirschsprung disease

Question 5

Which imaging study is preferred to evaluate renal colic and suspected urolithiasis in adults?

Accepted Answer

Non-contrast CT of the abdomen and pelvis

Answer

IVP (intravenous pyelogram)

Answer

Ultrasound of the kidneys

Answer

MRI of the abdomen

Question 6

On a lateral cervical spine X-ray, what is the normal prevertebral soft tissue width at C3?

Accepted Answer

Less than 7 mm

Answer

Less than 3 mm

Answer

Less than 10 mm

Answer

Less than 15 mm