Microbiology
| Full details for "Cryptococcal antigen". | |
|---|---|
Name |
Cryptococcal antigen |
Alternative name/Profile |
Cryptococcal meninigitis / Cryptococcal meningoencephalitis / Cryptococcal neoformans |
Department |
Microbiology |
Investigation |
|
Specimen type |
Peripheral blood or CSF |
Sample type |
|
Sample container & volume |
Serum: 6 ml Red top (Z serum Clot Activator) serum tube or CSF: received in sterile Universal container |
Frequency of analysis |
Daily (Serum)& As Required (CSF samples) |
Turnaround time |
2 days |
Availability |
Weekly |
Notes |
Please Note: Negative results do not rule out the diagnosis of disease. The specimen may have been drawn before detectable antigen was present. Limitations of the test: Weakly encapsulated strains can lead to false negative results. Trichosporon beigelii can cause false positive results. Patients with high levels (>40 ug/ml) of Human anti-mouse antibodies (HAMA) may cause false positives.
Specimen must be transported to the lab ASAP or else refrigerated if there is a delay |
Related links |
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Reference range |
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Last updated |
Thu, 18 Sep 2025 14:50:40 IST |