SCRN | Latest 2025/2026 Study Guide With Complete Solutions (New Updated Version)…Graded A+

SCRN | Latest 2025/2026 Study Guide With Complete Solutions (New Updated Version)…Graded A+ Non-communicating hydrocephalus - ANSWER Obstructive - occlusion of csf flow communicating hydrocephalus - ANSWER non obstructive, caused by inadequate absorption of CSF when the ventricular pathways are not obstructed (blood/csf are unable to pass through) Where are the venous sinuses located? - ANSWER Subdural space What type of bleed would most likely cause hydrocephalus? - ANSWER SAH Where is the most common place for obstructive hydrocephalus to occur? - ANSWER Aqueduct of Sylvius At what rate is CSF produced? - ANSWER 0.3-0.4 ml/min What does bloody csf indicate? - ANSWER SAH or traumatic tap Xanthochromia (CSF) - ANSWER Rust/yellow CSF = RBC's breakdown - implies blood is in CSF for several hours and not due to trauma (can indicate SAH)