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Glucose, CSF
| Item | Value |
|---|---|
| Approval req'd? | No |
| Available Stat? | Yes |
| Test code | GLC |
| Test group | Glucose |
| Performed by | Parnassus Chemistry |
| In House Availability | Test available 24 hours per day 7 days per week |
| Method | Parnassus:Oxygen consumption (O2 electrode with glucose oxidase) |
| Collection Instructions | Specimen label must contain the date the sample was collected and the legible name of the person who collected the sample. |
| Container type | CSF tube |
| Amount to Collect | 3 mL CSF |
| Sample type | CSF |
| Preferred volume | 0.5 mL CSF |
| Min. Volume | 0.2 mL CSF |
| Units | mg/dL |
| Normal range | 40-70 mg/dl |
| Critical value | < 30 mg/dL |
| Stability | Refrigerated 10 days. |
| Turn around times | STAT 1 hour, Routine 4 hours |
| Additional information | To convert mg/dl to mmol/L (SI units) multiply by 0.0555. CSF levels are usually > 55% of serum glucose and > 40 mg/dL. As serum glucose rises above 200 mg/dL the CSF/serum ratio falls from about 0.55 to a minimum of 0.31. |
| LOINC code | 2342-4 |
| Last Updated | 3/24/2013 7:41:08 PM |
| Entry Number | 424 |
| Lab Procedure Link | Click here for Procedure |
If you have additional questions regarding this test, please call: 415-353-1667