Update Type: Test Code Change
Test Updated: 05/08/2024
Test Overview
Test Methodology

Complement Fixation (CF)/Immunodiffusion

Test Usage

Aiding in the diagnosis of Histoplasma meningitis in spinal fluid specimens

Reference Range *

Negative

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Cross-reacting antibodies with coccidioidomycosis or blastomycosis may cause false-positive results for Histoplasmosis.

Test Details
Days Set Up
Monday - Friday
Analytic Time

3 - 9 days

Soft Order Code
HICSF
Synonyms
    Laboratory
    Sendout
    Reference Laboratory
    Mayo HICSF
    Section
    Special Testing
    Specimen Requirements
    Collection Instructions

    Collect CSF in a sterile tube. Seal tightly and parafilm to prevent leakage, or transfer to screw capped aliquot tube (preferred). Send to Specimen Processing refrigerated. For MLab client use only

    Normal Volume
    1 mL CSF
    Minimum Volume
    0.8 mL CSF
    Storage Temperature
    Refrigerated preferred, frozen acceptable
    Additional Information

    Test performed by Mayo Clinic Laboratories

    Billing
    CPT Code
    86698 x 3
    Fee Code
    AA538 x3
    NY State Approved
    No