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Test Code HIBAG Histoplasma and Blastomyces Antigen, Enzyme Immunoassay, Serum

Additional Codes

Epic Ordering Code LAB3041479
NBS code LBC12444
Service code 36746 

Reporting Name

Histoplasma/Blastomyces Ag, EIA, S

Specimen Type

Serum


Specimen Required


Supplies: Sarstedt Aliquot Tube, 5 mL (T914)

Collection Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.


National University Hospital-Singapore Note:

NUH Outreach Laboratories:
Specimen Requirements
Submit only one of the following:
Preferred: Yellow Top
Acceptable: Red Top
Processing Requirements
Centrifuge and aliquot serum into a Mayo plastic tube.
Specimen type: Serum
Volume: 1.5 mL
Storage/transport requirements: Refrigerated

Forms

If not ordering electronically, complete, print, and send a Kidney Transplant Test Request with the specimen.

Specimen Minimum Volume

1.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  72 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject
Heat-inactivated specimen Reject

Method Name

Enzyme Immunoassay (EIA)

Day(s) Performed

Monday through Saturday

Report Available

Same day/1 to 4 days
National University Hospital-Singapore Note:

Please note that this is a referral test requiring transport to the external testing facility and an additional 3-5 days is required.

Reference Values

Histoplasma/Blastomyces Antigen Result:

Not detected

 

Histoplasma/Blastomyces Antigen Value:

Not detected

Detected: <1.5 ng/mL

Detected: 1.5-25.0 ng/mL

Detected: >25.0 ng/mL

 

Reference values apply to all ages.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Diagnosing Histoplasma capsulatum or Blastomyces dermatitidis infection, without differentiation between the organisms, using serum specimens

 

Monitor antigen levels following initiation of antifungal treatment

CPT Code Information

87449

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HIBAG Histoplasma/Blastomyces Ag, EIA, S 101587-4

 

Result ID Test Result Name Result LOINC Value
619492 Histoplasma/Blastomyces Ag Result 101588-2
619493 Histoplasma/Blastomyces Ag Value 101589-0

Secondary ID

618715

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.
National University Hospital-Singapore Additional Information:

Last updated 28/07/2026