Geisinger Medical Laboratories/Geisinger Proven Diagnostics Test Catalog

Test Name: Sunquest Test Code Epic Procedure Code Or ID CPT Code:  

ASPERGILLUS GALACTOMANNAN, BLOOD (SERUM)

ORDERING INFORMATION:
Sunquest Test Code:
AGALSR      Geisinger Epic Procedure Code: AGALSR         Geisinger Epic ID: 35177

SPECIMEN COLLECTION
Specimen type:
Serum
Preferred collection container:
Specimen required:
3-5 mL (minimum 1 mL) serum, frozen.

SPECIMEN PROCESSING
Specimen processing instructions:
Centrifuge serum within 2 hours of collection. Place the unopened SST in the freezer. Do not aliquot. If specimen will not be tested within 5 days of collection specimen must be frozen at -70C and shipped on dry ice. Do not open tube following collection as environmental contamination can occur. Although it is strongly recommended that pour-off tubes not be submitted for testing, if there are no unopened specimens available, the following comment will be included in the final report on positive specimens: “The use of pour-off tubes is not recommended due to the potential for environmental contamination of the sample that can lead to false positive results; therefore, interpret results from samples provided in pour- off tubes with caution.” 
Transport temperature:
Frozen.
Specimen stability:
Room temperature: Unacceptable. Refrigerated: Unspecified. Frozen: Unspecified.
Rejection criteria:
Specimen received at room temperature. Lipemic, icteric, or hemolyzed specimens. Specimens that have been stored refrigerated for more than 5 days.

TEST DETAILS
Interpretation guide:
The reference range is an index of <0.5. Numerical index values will be reported. Patients with an index of >0.5 are considered to be positive for galactomannan antigen. Patients with an index of <0.5 are considered to be negative for galactomannan antigen.
Critical values/courtesy alerts:
Patients with an index of >0.5 are considered to be positive for galactomannan antigen.
Additional information:
Specimens testing positive will be retested to confirm the positive result.
CPT code(s):
87305
Note: The billing party has sole responsibility for CPT coding.  Any questions regarding coding should be directed to the payer being billed.  The CPT codes provided by GML are based on AMA guidelines and are for informational purposes only.
Test includes:
Galactomannan antigen.
Methodology:
Enzyme Immunoassay (EIA)
Synonyms:
Aspergillus galactomannan EIA BAL
Clinical significance:
The Aspergillus Galactomannan EIA is a test, when used in conjunction with other diagnostic procedures, such asmicrobiological culture, histological examination of biopsy specimens, and radiographic evidence that can be used to aid in the diagnosis of Invasive Aspergillosis. Twice weekly monitoring of neutropenic patients is often recommended in the peer-reviewed literature to obtain maximum diagnostic utility of the assay.

Performing Locations

Viracor-IBT Laboratories

Technical Lead: Michael Weaver    
Frequency: Monday-Saturday    
Performed stat? No
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