Q. Which is INCORRECT regarding investigation of SAH? (Solved)
1. Non contrast CT becomes less sensitive with time following bleed.
2. 5-10% of patients with negative CT will have SAH.
3. Presence of xanthochromia is the gold standard for diagnosing SAH on LP.
4. Xanthochromia is present in all patients with SAH at 6 hrs post blee
5. MRI angiography is not reliable enough to use for diagnosis and surgical planning of patients with proven SAH.
- d. Xanthochromia is present in all patients with SAH at 6 hrs post bleed.