Multiple Choice Questions (MCQ)

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Category: Emergency Medicine--->Neurological and Neurosurgical Emergencies
Page: 2

Question 6# Print Question

Regarding the diagnosis of SAH, which ONE of the following is TRUE?

A. When performed within 12 hours of the onset of symptoms, the sensitivity of non-contrast CT in detecting subarachnoid blood is up to 98%
B. Magnetic resonance imaging (MRI) is an equally sensitive substitute to non-contrast CT
C. In the presence of red blood cells (RBCs) in the cerebrospinal fluid (CSF), the absence of xanthrochromia reliably excludes SAH
D. Currently available evidence suggests that CT angiography is suitable as a first-line investigation

Question 7# Print Question

Regarding complications associated with Subarachnoid Haemorrhage (SAH), which ONE of the following is TRUE?

A. Vasospasm is maximal in the first 24 hours
B. Seizure prophylaxis is indicated in the ED for all patients
C. Delayed cerebral ischaemia is usually associated with hyperglycaemia and suboptimal maintenance of body temperature
D. Rebleeding is generally independent of the patient’s blood pressure contro

Question 8# Print Question

A 56-year-old woman presents to the ED with a 2-day history of sudden onset severe headache.

Which ONE of the following findings is MOST likely to suggest Subarachnoid Haemorrhage (SAH)?

A. Homogenously bloody CSF in all tubes
B. Normal opening pressure at lumbar puncture
C. Maximal headache at 6 hours after the onset
D. Absence of white cells in the CSF

Question 9# Print Question

A 34-year-old man presents with an ongoing moderately severe headache that had a sudden severe onset 8 days ago.

Which ONE of the following statements is TRUE regarding investigations to exclude Subarachnoid Haemorrhage (SAH)?

A. Appearance of xanthochromia in CSF obtained through LP is not reliable because of the delayed presentation from the onset of headache
B. CSF oxyhaemoglobin produced in vitro due to a traumatic tap does not contribute to xanthochromia
C. Progressively reducing RBC count in successive tubes confirms the LP as a traumatic tap
D. Negative xanthochromia with >5 RBC count should require further evaluation to exclude SAH

Question 10# Print Question

Which ONE of the following clinical features is LEAST likely to be associated with an embolic stroke?

A. Previous transient neurological deficits involving more than one vascular distribution area
B. Current intravenous drug use
C. Fluctuating severity of neurological deficit
D. A recent ST segment elevation myocardial infarction (STEMI) treated with primary angioplasty

Category: Emergency Medicine--->Neurological and Neurosurgical Emergencies
Page: 2 of 6