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Aspergillus Galactomannan Antigen

Aspergillosis Galactomannan Antigen

Test Codes

BAL: EPIC: LAB7123, Beaker: XASPB, CSF: EPIC: LAB7124, Beaker: XASPC, Serum: EPIC: LAB7125, Beaker: XASPG, MiraVista: 309

Department

Send Outs

Specimen Collection Criteria

Collect: One Gold-top SST tube or plain Red-top tube.
Also acceptable: Bronchoalveolar Lavage (BAL) or Cerebrospinal Fluid (CSF) in a sterile container.

Send specimen for processing immediately after collection.

Physician Office/Draw Specimen Preparation

Let blood specimens clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F). Maintain BAL and CSF specimens refrigerated (2-8°C or 36-46°F) prior to transport.

Preparation for Courier Transport

Transport: 1.0 mL serum, BAL, or CSF, refrigerated (2-8°C or 36-46°F). (Minimum: 0.8 mL)

Rejection Criteria

Urine specimens.

Specimens not collected and processed as indicated.

In-Lab Processing

Let blood specimens clot 30-60 minutes then centrifuge to separate serum from cells. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F). Maintain BAL and CSF specimens refrigerated (2-8°C or 36-46°F) prior to transport.

Transport: 1.0 mL serum, BAL, or CSF, refrigerated (2-8°C or 36-46°F). (Minimum: 0.8 mL) 

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 48 hours
Refrigerated (2-8°C or 36-46°F): 5 days
Frozen (-20°C/-4°F or below): 5 months

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to Mira Vista Diagnostics, Indianapolis, IN.

Performed

Monday – Friday.
Results available in 2-5 days.

Reference Range

By report.

Test Methodology

One Stage Immunoenzymatic Sandwich Microplate Assay.

Interpretation

False positive results can be caused by infection with Penicilium, Alternaria and Paecilomyces. Patients with Histoplasmosis and other endemic myscoes may also cause false positives. Antifungal therapy may reduce the assays sensitivity.

Clinical Utility

This test is an aid in the early diagnosis of invasive aspergillosis and, along with other diagnostic tests and clinical signs of disease, allows for the effective early treatment of the disease.

CPT Codes

87305

Contacts

Last Updated

4/8/2024