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Test Code CIGGI Cerebrospinal Fluid (CSF) IgG Index

Additional Codes

Panel Test includes:

  • CSF IgG
  • Serum IgG
  • CSF Albumin
  • Serum Albumin
  • CSF IgG Index Calculation

Performing Laboratory

ChristianaCare-Newark Campus

Day(s) Test Set up

Monday through Friday

Methodology

Nephelometry

Specimen Requirements

Serum and spinal fluid are required.  Specimens must be obtained within 1 week of each other.

 

Specimen Type:  Serum

Container/Tube:  Red top or serum gel

Specimen Volume:  1 mL

Collection Instructions:  Label specimen as serum

 

Specimen Type:  Spinal fluid

Container/Tube:  Sterile vial

Specimen Volume:  1 mL

Collections Instructions:  Label specimen as spinal fluid

 

Specimen Minimum Volume: 

Serum:  0.5 mL

Spinal Fluid:  0.5 mL

Reference Values

CSF index:  0.00 - 0.85

CSF IgG:  0.0-5.5 mg/dL

 

Serum IgG

Age Range
0-4 months 100-334 mg/dL
5-8 months 164-588 mg/dL
9-14 months 246-904 mg/dL
15-23 months 313-1,170 mg/dL
2-3 years 295-1,156 mg/dL
4-6 years 386-1,470 mg/dL
7-9 years 462-1,682 mg/dL
10-12 years 503-1,719 mg/dL
13-15 years 509-1,580 mg/dL
16-17 years 487-1,327 mg/dL
> 18 years

767-1,590 mg/dL

 

Serum Albumin

Age Range
< 1 month 2.9-5.5 mg/dL
< 4 months 2.8-5.0 mg/dL
< 1 year 3.0-5.1 mg/dL
> 1 year 3.8-5.1 mg/dL

 

CSF IgG/albumin:  0.00-0.21

Serum IgG/albumin:  0.0-0.4

CSF IgG synthesis rate:  0-12 mg/24 hours

Specimen Type

CSF

Serum

Useful For

As an aid in the diagnosis of multiple sclerosis