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Immunoglobulin G, CSF Index
Test Code3040002523
Alias/See Also
1232600002
CPT Codes
82040 82784 (2) 82042
Includes
IMMUNOGLOBULIN G (ARUP)
IMMUNOGLOBULIN G CSF (ARUP)
ALBUMIN, SERUM (ARUP)
ALBUMIN, CSF (ARUP)
ALBUMIN INDEX (ARUP)
CSF IGG SYNTHESIS RATE (ARUP)
IGG INDEX (ARUP)
CSF IGG/ALBUMIN RATIO (ARUP)
IMMUNOGLOBULIN G, CSF INDEX INTERP (ARUP)
IMMUNOGLOBULIN G CSF (ARUP)
ALBUMIN, SERUM (ARUP)
ALBUMIN, CSF (ARUP)
ALBUMIN INDEX (ARUP)
CSF IGG SYNTHESIS RATE (ARUP)
IGG INDEX (ARUP)
CSF IGG/ALBUMIN RATIO (ARUP)
IMMUNOGLOBULIN G, CSF INDEX INTERP (ARUP)
Preferred Specimen
Sterile Container AND Gold Top
Minimum Volume
0.5 mL CSF AND 0.5 mL serum
Instructions
Serum specimen should be drawn within 48 hours of CSF collection. Centrifuge and separate CSF to remove cellular material. Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL CSF AND 1 mL serum to individual ARUP Standard Transport Tubes. (Min: 0.5 mL CSF AND 0.5 mL serum)
Transport Temperature
Refrigerated
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly bloody or hemolyzed specimens.
Reference Range
SEE RESULT REPORT
Performing Laboratory
ASSOCIATED REGIONAL AND UNIVERSITY PATHOLOGISTS, INC (ARUP)
Last Updated: August 26, 2026
