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Test Code PLFAT Cryptococcus Antigen Titer, Lateral Flow Assay, Pleural Fluid

Reporting Name

Cryptococcus Ag Titer, LFA, PF

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Useful For

Diagnosis of infection with Cryptococcus species

Method Name

Only orderable as a reflex. For more information see PLFA / Cryptococcus Antigen Screen, Lateral Flow Assay, Pleural Fluid.

 

Lateral Flow Assay (LFA)


Specimen Required


Only orderable as a reflex. For more information see PLFA / Cryptococcus Antigen Screen, Lateral Flow Assay, Pleural Fluid.


Specimen Type

Pleural Fluid

Specimen Minimum Volume

0.25 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Pleural Fluid Refrigerated (preferred) 21 days
  Frozen  30 days

Reject Due To

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Reference Values

Only orderable as a reflex. For more information see PLFA / Cryptococcus Antigen Screen, Lateral Flow Assay, Pleural Fluid.

Interpretation

The presence of cryptococcal antigen in pleural fluid is indicative of infection with Cryptococcus species.

 

Monitoring cryptococcal antigen levels as a means to determine response to therapy is discouraged, as antigen levels may persist despite adequate treatment and disease resolution.

 

A negative result indicates lack of infection; however rare cases of false-negative results have been reported. Fungal culture should always be ordered alongside antigen testing.

Day(s) Performed

Monday through Sunday

Report Available

2 days

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

87899

LOINC Code Information

Test ID Test Order Name Order LOINC Value
PLFAT Cryptococcus Ag Titer, LFA, PF 11473-6

 

Result ID Test Result Name Result LOINC Value
48431 Cryptococcus Ag Titer, LFA, PF 11473-6

Forms

If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.