CSF Profile (Appearance, WBC count, RBC count, Glucose and Total Protein)

Specimen Container	Sterile container
Specimen Requirement	CSF 2 mL
Orderable as Urgent?	Yes
Turn Around Time	Average 2 hr ( 1 - 3 hr ).
Reference Value(s)	Appearance: Clear, colorless -- CSF WBC 1) <1 month 0-20 /uL 2) 1 to <2 months 0-10 /uL 3) >=2 months 0-5 /uL -- CSF RBC : 0 /uL -- CSF Glucose 1) <6 months 2.0 - 5.6 mmol/L 2) >=6 months 2.4 - 4.3 mmol/L -- CSF Protein: 1) <1 month 0.30-1.20 g/L 2) 1 to <3months 0.20-0.60 g/L 3) >=3 months 0.10-0.40 g/L Normal CSF: blood glucose ratio should be 0.6 or above.
Testing Laboratory Location	KKH
Laboratory	Clinical Chemistry
Contact Number	6394 1383
Day and Time Performed	Daily, 24 hrs
Orderable on CPOE?	Yes
Downtime Form	Clinical Chemistry - Form A
Additional Information	With effect from 12 February 2025, the Clinical Chemistry Laboratory will no longer perform CSF Gram stains. All CSF Gram stains will be performed and reported by the Microbiology Laboratory during their operational hours. Please refer to the eLab Book under CSF Culture and Gram Stain for details on Microbiology's operating hours.

Change History Notes

Last Updated - 01 Jul 2025