Glucose (CSF)

Test/Investigation

Glucose (CSF)

Site(s) or Laboratory offering Test/Investigation

NNUH, JPUH, QEH (Biochemistry)

Units

mmol/L

Comments/Precautions

CSF glucose concentration is expected to be between one third & one half the concurrent plasma glucose concentration. When 4 universal samples are taken for CSF analysis samples 3 and 4 should be sent to biochemistry as these have less blood contamination. Samples 1 and 2 are sent to Microbiology, as per CSF SOP.

Storage conditions and sample stability between collection and transport to Lab

Unpreserved samples must be analysed within 2 hours of collection.

Sample type

CSF collected into fluoride oxalate tube (Grey top)

Turnaround times (TAT) Urgent/Routine/GP or OPD

1 hour / 4 hour / 24 hours

Source

N/A