TY - CHAP M1 - Book, Section TI - Cerebral Spinal Fluid A1 - Pfennig, Camiron L. A1 - Brown, B. Ethan A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason PY - 2021 T2 - The Atlas of Emergency Medicine, 5e AB - Cerebral spinal fluid (CSF) is normally colorless and clear. Analysis provides clues to infectious diseases (meningitis, encephalitis, abscess) and noninfectious diseases (subarachnoid hemorrhage, Guillain-Barré syndrome, transverse myelitis, idiopathic intracranial hypertension, vasculitis, carcinomatosis, multiple sclerosis, paraneoplastic syndromes). The presence of xanthochromia (see Fig. 25.58) in the context of recent onset of severe headache suggests a spontaneous subarachnoid hemorrhage. Turbid fluid (see Fig. 25.59) obtained from a patient with headache and neck stiffness suggests meningitis. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/03/28 UR - accessmedicine.mhmedical.com/content.aspx?aid=1181053103 ER -