Glucose, CSF
| Sunquest Code: | CGLU | ||
| Epic Code: | LAB185 | Epic Name: | Glucose CSF |
| Methodology: | Bichromatic end point; glucose oxidase | ||
| CPT Code: | 82945 | ||
| Turnaround Time: | Performed and reported 24 hours/day. | ||
Collection Instructions
| Specimen: | CSF |
| Optimal Volume: | 1.25 mL |
| Minimum\Peds Volume: | 0.2 mL |
| Container: | Sterile tube (Plastic leakproof container, sterile) |
| Collection Instructions: | Number the tubes to indicate the sequence of collection. Transport to laboratory immediately. For interpretation, plasma glucose is also needed. Ideally, collect blood specimen two hours (equilibration time) prior to lumbar puncture. |
Processing and Shipping
| Specimen Processing: | Centrifuge specimens containing cells at room temperature. Aliquot 1.25 mL, 0.2 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Test Performed at or Referral Lab | Chemistry (Fairview Range - FRMC, UMMC-East Bank, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, Grand Itasca GICH) |
Interpretive
| Critical Range: | Less than 40 mg/dL |
| Reference Range: | 40-70 mg/dL
GICH: 40-80 mg/dL CSF glucose concentrations are about 60% of normal plasma glucose. |
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