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Aspergillus antigen (Galactomannan)

Alias: Aspergillosis, Galactomannan

Discipline: Virology

Test information: Detection of Aspergillus antigen (galactomannan) is appropriate for the diagnosis of invasive aspergillosis in immunocompromised patients.

Availability: Referred to Severn Pathology North Bristol NHS Trust: Monday - Friday during routine hours: 08:45 - 17:15.

Turnaround Time: 10 Day upon receipt at Severn Pathology North Bristol NHS Trust

Specimen Type(s)
  • Bronchoalveolar Lavage;
  • Clotted blood;
Other Acceptable Specimen Type(s)
Specimen Container - Adult
  • Gold Top SST BD;
  • Sterile CE-marked Universal Container;
Specimen Container - Paediatric
  • Plain Top Sarstedt;
  • Sterile CE-marked Universal Container;
  • Aspergillus antigen (Galactomannan);
Part of a test profile?
Volume (min) of sample to be sent to laboratory
Patient Preparation, Sample Handling and Transport
  • Minimum-clotting time 30 minutes.
  • Specimens should be transported to the laboratory as soon as possible.
  • Outside of normal hours samples should be refrigerated (2 °C to 8 °C).
Maximum add on time
Units and Reference Ranges / Interpretation

Aspergillus antigen test: Negative / Positive.

Index value: An index value of 0.5 or greater is considered a positive result for serum samples. A higher index value of greater than 1 would be considered positive for Bronchoalveolar lavage samples.

This result should be interpreted in the context of patient history, clinical signs/symptoms, and other routine diagnostic tests (e.g., culture, histologic examination of biopsy material, and radiographic imaging).

UKAS number
UKAS accredited test?

If you have any queries about a test or results interpretation please contact us.

Last updated: 23-08-2023