Table 2.

Cerebrospinal fluid analysis; Ref. (34, 46).

Condition	WBC (×106/L)	Glucose (% of serum glucose)	Protein (g/dL)	Opening pressure (mmH2O)	Appearance
Normal	0–4	>60	<0.45	50–250	Clear
Powassan	Elevated	Mildly elevated	Elevated	–	–
Bacterial	1,000–5,000 polymorphs	Decreased	Increased	nl/Increased	Cloudy
Viral	10–2,000 lymphocytes	Normal	nl/Increased	Normal	Clear
SAH	nl/Slightly raised	Normal	Elevated	Elevated	Blood-stained xanthochromic
Tuberculosis	50–5,000 lymphocytes	Decreased	Elevated	nl/Elevated	Clear/cloudy

SAH, subarachnoid hemorrhage; nl, normal.