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Test ID: FCOCC    
Coccidioides Antibodies, IgG & IgM by ELISA

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Coccidioides Antibody, IgG by ELISA      IV (<=0.9)

 

0.9 IV or less:                Negative – No significant level of Coccidioides IgG antibody detected.

1.01 – 1.4 IV:                 Equivocal – Questionable presence of Coccidioides IgG antibody detected. Repeat testing in 10 – 14 days may be helpful.

1.5 IV or greater:            Positive – Presence of IgG antibody to Coccidioides detected, suggestive of current or past infection.

 

IgG antibodies usually appear by the third week of infection and may persist for years. Both tube precipitin (TP) and CF antigens are represented in the ELISA tests.

 

Coccidioides Antibody, IgM by ELISA      IV (<=0.9)

 

0.9 IV or less:                Negative – No significant level of Coccidioides IgM antibody detected.

1.0 – 1.4 IV:                  Equivocal – Questionable presence of Coccidioides IgM antibody detected. Repeat testing in 10 – 14 days may be helpful.

1.5 IV or greater:            Positive – Presence of IgM antibody to Coccidioides detected, suggestive of current or recent infection.

 

In most symptomatic patients, IgM antibodies usually appear by the second week of infection and disappear by the fourth month. Both tube precipitin (TP) and CF antigens are represented in the ELISA tests.

 

Test Performed by:         ARUP Laboratories

                                    500 Chipeta Way

                                    Salt Lake City, UT 84108