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HelpTest Code ASG, ASGB, ASGC Aspergillus Galactomannan Antigen (Blood, BAL, CSF)
Laboratory Code
| Blood | LAB1311 |
|---|---|
| BAL | LAB1901 |
| CSF | LAB1900 |
Specimen Requirements
Submit only one of the following
Specimen Type: Serum
Container/Tube: Gold Top (SSTII) / Red Top
Volume: 5.0 mL, 0.5 mL (Microtainer) / 6.0 mL
Minimum Volume: 1.0 mL serum (For paediatric patient: Please send at least 3 full Microtainer)
Specimen Type: BAL (ASGB), CSF (ASGC)
Container/Tube: Sterile screw-capped container
Volume: 2.0 mL
Minimum Volume: 1.0 mL
Specimen Stability
| Specimen Type | Serum, BAL, CSF |
|---|---|
| Ambient | Submit sample to lab immediately |
| Refrigerate | 2 days |
| Frozen | 14 days |
Methodology
Enzyme Immunoassay
Days and Times Performed
Monday and Thursday mornings, TAT 1-5 days
Sample must reach Microbiology Laboratory by 10 am on test day for result to be available on the same day.
Reference Interval
< 0.5 GM Index (for serum), < 1.0 GM Index (for BAL)
Testing Laboratory
National University Hospital
Clinical Microbiology, 6772 4343
Useful For
Detection of galactomannan, a major constituent of Aspergillus cell walls, for the diagnosis of Aspergillosis.
Service Code
23009
LOINC Code Information
| Blood | 44357-2 |
|---|---|
| BAL | 88555-8 |
| CSF | 53865-2 |
Update
Last updated 17/03/2025