Try it
Radiology · Neuroimaging: subarachnoid hemorrhage
Sample itemA patient has thunderclap headache and noncontrast CT is negative six hours after onset, but clinical suspicion for subarachnoid hemorrhage remains high. What is the next diagnostic principle?
Original practice item, not a recalled exam question. Nothing here is recorded.
The answer and the reasoning
A. Use an appropriate further hemorrhage workup such as CT angiography or lumbar puncture according to protocol
A negative CT does not always end evaluation when suspicion for subarachnoid hemorrhage remains high; the next test depends on timing, local pathway, and patient factors. CT angiography and lumbar puncture are used in selected diagnostic algorithms.
Option by option
A. Use an appropriate further hemorrhage workup such as CT angiography or lumbar puncture according to protocol (correct)
Correct. Persistent high suspicion requires protocol-based further evaluation.
B. Perform a plain skull radiograph
Skull radiography does not detect subarachnoid blood.
C. Request a DEXA scan
DEXA assesses bone density.
D. Discharge because CT excludes all hemorrhage
No single test excludes every case in every timing context.
Source note: Original NextPrep sample item — pending expert review. This item is original practice material awaiting independent expert review, so confirm important facts in a standard textbook.
More Radiology questions
- NeuroimagingWhat is the first investigation of choice in suspected acute subarachnoid haemorrhage?
- Cardiac imagingA 'boot-shaped' heart (coeur en sabot) on a chest radiograph is typical of:
- Musculoskeletal imagingA 'bamboo spine' on a plain radiograph is characteristic of:
- Paediatric radiologyThe 'double bubble' sign on an abdominal radiograph of a newborn suggests: