A
5200 Harry Hines Blvd.
,
Dallas
,
TX
75235
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General Information
Alias: CSF Index
Performed: Mon, Wed, Fri
Turn Around Time: 3 to 7 days
CPT Codes: 83916
82784 x2
82040
82042
Performed By: Referral Lab
Notes: Serum and CSF Specimens must be assayed together for interpretation. A patient is considered positive for CSF oligoclonal bands if there are two or more bands in the CSF immunoglobulin region that are not present in the serum. In order to confirm local production of oligoclonal IgG in CSF, a matched serum sample is required. Oligoclonal bands present in CSF, but not in serum, indicate central nervous system production. Oligoclonal bands are performed using isoelectric focusing and immunofixation.
Link:
IGG CSF INDEX
Components
| Name |
Method |
Sex |
Age Range |
Ref. Range Low |
Ref. Range High |
Units |
| CEA |
Roche Diagnostics- (Monoclonal) Electrochemiluminescence Immunoassay (ECLIA) |
|
|
|
|
|
| Immunology G |
Quantitative Nephelometry
|
|
0 - 30 |
611 |
1542 |
mg/dL |
| _EMPTY |
|
|
1 |
241 |
870 |
mg/dL |
| _EMPTY |
|
|
2 |
198 |
577 |
mg/dL |
| _EMPTY |
|
|
3 |
169 |
588 |
mg/dL |
| _EMPTY |
|
|
4 |
188 |
536 |
mg/dL |
| _EMPTY |
|
|
5 |
165 |
781 |
mg/dL |
| _EMPTY |
|
|
6 |
206 |
676 |
mg/dL |
| _EMPTY |
|
|
42559 |
208 |
868 |
mg/dL |
| _EMPTY |
|
|
42624 |
282 |
1026 |
mg/dL |
| _EMPTY |
|
|
1 |
331 |
1164 |
mg/dL |
| Procalcitonin |
Immunoassay |
|
|
Less than 0.07 ng/mL |
|
ng/dL |
| _EMPTY |
|
|
3 |
423 |
1090 |
mg/dL |
| _EMPTY |
|
|
4 |
444 |
1187 |
mg/dL |
| _EMPTY |
|
|
42497 |
608 |
1229 |
mg/dL |
| _EMPTY |
|
|
10 |
786 |
1632 |
mg/dL |
| Immunoglobin G, CSF |
Quantitative Nephelometry
|
|
|
0 |
6 |
mg/dL |
| Albumin, CSF |
Quantitative Nephelometry
|
|
|
0 |
35 |
mg/dL |
| Albumin Index |
Qualitative Isoelectric Focusing/Electrophoresis
|
|
|
0 |
9 |
ratio |
| CSF IgG/Albumin Ratio |
Qualitative Isoelectric Focusing/Electrophoresis
|
|
|
0.09 |
0.25 |
ratio |
| IgG Index |
Qualitative Isoelectric Focusing/Electrophoresis
|
|
|
0.28 |
0.66 |
ratio |
| CSF Oligoclonal Bands |
Qualitative Isoelectric Focusing/Electrophoresis
|
|
|
|
Negative |
ratio |
| Interpretation |
Qualitative Isoelectric Focusing/Electrophoresis
|
|
|
|
By report |
|
| CSF IgG Synthesis Rate |
Qualitative Isoelectric Focusing/Electrophoresis |
|
|
|
Less than or equal ro 8.0 |
mg/dL |
| Albumin by Nephelometry |
Quantitative Nephelometry |
|
|
3500 |
5200 |
mg/dL |
| Oligoclonal Bands, CSF/Serum, Number |
Qualitative Isoelectric Focusing/Electrophoresis |
|
|
|
0-1 Bands |
|
Specimen Requirements
| Type |
Container |
Volume |
Units |
Collection / Delivery |
Storage / Transport |
Off Campus |
| Blood |
Red w/Gel., 5mL |
|
|
Both Blood and CSF specimens required. Draw at same time or within 48 hour limit. Centrifuge and separate CSF to remove cellular material. Separate serum from cells ASAP or within 2 hours of collection. |
Refrigerated |
Refrigerated |
| CSF |
CSF Vial |
|
|
Both Blood and CSF specimens required. Draw at same time or within 48 hour limit. Centrifuge and separate CSF to remove cellular material. Separate serum from cells ASAP or within 2 hours of collection. |
Refrigerated |
Refrigerated |