This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Raised ICP and Brain death, Subject name: Medicine
Which is not a sign of raised ICP? 
Select and explain. 
A. Blurring of disc margins, B. Positive Kernig Sign, C. Ipsilateral pupil dilatation, D. Ipsilateral hemiplegia
B: Positive Kernig Sign
Answer: B: Positive Kernig Sign 
Explanation: Positive Kernig sign is a feature of meningeal irritation and not raised ICP. Ipsilateral hemiplegia occurs due to Kernohan Woltman sign seen in uncal herniation. Ipsilateral pupil dilatation: The pupil of the same side of CNS bleed dilates and shows a sluggish reaction to light. It is seen in uncal herniation and is called Hutchinson's pupil. Blurring of disc margins is an early finding in papilledema