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Test Code HIBC Histoplasma/Blastomyces Panel, Spinal Fluid


Specimen Required


Container/Tube: Sterile vial

Specimen Volume: 1.5 mL

Collection Instructions: Submit specimen from collection vial 1.


Secondary ID

621305

Useful For

Aiding in the diagnosis of histoplasmosis or blastomycosis meningitis

Profile Information

Test ID Reporting Name Available Separately Always Performed
HICSF Histoplasma Ab CompFix/ImmDiff, CSF Yes Yes
CBL Blastomyces Ab Immunodiffusion, CSF Yes Yes

Testing Algorithm

For more information see Meningitis/Encephalitis Panel Algorithm

Method Name

HICSF: Complement Fixation (CF)/Immunodiffusion (ID)

CBL: Immunodiffusion (ID)

Specimen Type

CSF

Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
CSF Refrigerated (preferred) 14 days
  Frozen  14 days

Reference Values

HISTOPLASMA ANTIBODY

Anti-Yeast antibody by Complement Fixation: Negative (positive results reported as titer)

Antibody by Immunodiffusion: Negative (positive results reported as titer)

 

BLASTOMYCES ANTIBODY IMMUNODIFFUSION

Negative

Interpretation

Histoplasma:

-Any positive serologic result in spinal fluid is significant.

-Simultaneous appearance of the H and M precipitin bands suggests active histoplasmosis.

-The M band alone indicates active or chronic disease or a recent skin test for histoplasmosis.

 

Blastomyces:

A positive result is suggestive of infection, but the results cannot distinguish between active disease and prior exposure. Furthermore, detection of antibodies in cerebrospinal fluid (CSF) may reflect intrathecal antibody production or may occur due to passive transfer or introduction of antibodies from the blood during lumbar puncture.

 

Routine fungal culture of clinical specimens (eg, CSF) is recommended in cases of suspected blastomycosis involving the central nervous system.

Day(s) Performed

Monday through Friday

Report Available

3 to 7 days

Specimen Retention Time

14 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86698 x2

86612

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HIBC Histoplasma/Blastomyces Panel,CSF 91683-3

 

Result ID Test Result Name Result LOINC Value
15134 Blastomyces Immunodiffusion (CSF) 51741-7
621217 Histoplasma Yeast CompFix, CSF 27209-6
621218 Histoplasma Immunodiffusion, CSF 91682-5