ARUP's Laboratory Test Directory

Aspergillus Galactomannan Antigen by EIA, Serum : 0060068

Mnemonic: ASPERAG

Methodology: Semi-quantitative Enzyme Immunoassay
Performed: Sun-Sat
Reported: 1-2 days
Specimen Required: Collect: Plain red.

Specimen Preparation: Separate serum from cells within 2 hours of collection. Transfer 2 mL serum to a sterile ARUP Standard Transport Tube (ARUP Supply #43115). Available online through eSupply using ARUP Connect™ or contact Client Services at (800) 522-2787. (Min: 1 mL)

Storage/Transport Temperature: Frozen.

Unacceptable Conditions: Plasma. Serum separator tube. Hemolyzed specimens.

Stability (collection to initiation of testing): After separation from cells: Ambient: Unacceptable; Refrigerated: 1 week; Frozen: 1 week
Reference Interval:
 
Test Number Components Reference Interval
 Aspergillus Galactomannan Antigen, Serum Negative
 Aspergillus Galactomannan Index By report

Interpretive Data: Negative results do not exclude the diagnosis of invasive aspergillosis. A single positive test result (index equal to or greater than 0.5) should be clinically correlated by testing a separate serum specimen because many agents (e.g. foods, antibiotics) may cross-react with the test. If invasive aspergillosis is suspected in high-risk patients, serial sampling is recommended.

The false-positive rate is higher in children than in adults. (Cancer 91:311, 2001; J.Clin Oncol 20:1898,2002; Mycosis 41:373,1998).
Note: For bronchial specimens refer to Aspergillus Galactomannan Antigen by EIA, Bronchoscopy (ARUP test code 2003150)
CPT Code(s): 87305
Cross References: Aspergillosis (Aspergillus Galactomannan Antigen by EIA, Serum) , Galacto (Aspergillus Galactomannan Antigen by EIA, Serum) , Galactomannan (Aspergillus Galactomannan Antigen by EIA, Serum) , Platelia Aspergillus (Aspergillus Galactomannan Antigen by EIA, Serum) , Platelia Aspergillus Galactomannan (Aspergillus Galactomannan Antigen by EIA, Serum)