Coccidioides antibody, IgG & IgM

Alphabetical Test listing

Coccidioides antibody, IgG & IgM-14431

Test name:

Test number:

14431

Excellian order number:

LAB14431

Abbreviation:

COCCABIGGIGM

Alternate names:

CF
Coccidioides immitis
Coccidioidomycosis
Precipitin
TP
Valley fever

Tests included:

Coccidioides antibody IgG and IgM by ELISA are used to screen for Coccidioides antibodies.
If the ELISA testing is equivocal or positive for IgG and/or IgM, then Coccidioides immitis antibodies by Immunodiffusion, and Coccidioide titer will be added.

Useful for:

Preferred serology test to detect Coccidioidomycosis (Valley fever)

Specimen type:

Serum

Collection container:

Gold serum separator (SST) tube

Volume:

2.0 mL

Minimum volume:

0.6 mL

Collection instructions:

Immediately following collection, thoroughly mix sample by gently inverting 5 times

Processing instructions:

Allow sample to clot for a minimum of 30 minutes
Spin within two (2) hours of sample collection

Transport container:

Gold serum separator (SST) tube

Alternate collection container:

Red serum vial/tube, 5 mL

Alternate processing instructions:

Allow sample to clot
Spin within two (2) hours of sample collection
Transfer serum to a Transfer vial/tube with cap - 12mL (LabCorp), labelled as serum

Alternate transport container:

Transfer vial/tube with cap - 12mL (LabCorp)

Transport and stability:

Refrigerated (preferred) – 2 weeks

Ambient – 48 hours

Frozen – 1 year

Specimen retention time:

30 days

Reason for rejection:

Contaminated specimen
Hemolyzed specimen
Severely lipemic specimens

Performing lab:

ARUP (3001982) via LabCorp (830945): R-NX

Days set up:

Daily

TAT:

3 - 7 days

Method:

Complement Fixation
Immunodiffusion
Enzyme-Linked Immunosorbent Assay (ELISA)

Reference ranges:

IgG and IgM: ≤0.9

CPT codes:

86635 x 2
86635 x 2 (if appropriate)

Date created:

11/17/2020

Revised date:

12/18/2023

Review date:

12/18/2023