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HelpTest Code LFACX Cryptococcus Antigen with Reflex, Spinal Fluid
Useful For
Aiding in the diagnosis of cryptococcosis
This test should not be used as a test of cure or to guide treatment decisions.
This test should not be performed as a screening procedure for the general population.
Profile Information
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| CLFA | Cryptococcus Ag Screen w/Titer, CSF | Yes | Yes |
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| CLFAT | Cryptococcus Ag Titer, LFA, CSF | Yes | No |
| FGENC | Fungal Culture, CSF | Yes, (Order FGEN) | No |
Testing Algorithm
If result is positive, Cryptococcus antigen titer will be performed at an additional charge.
If Cryptococcus antigen titer is positive, then fungal culture will be performed at an additional charge.
Reporting Name
Cryptococcus Ag w/Reflex, LFA, CSFSpecimen Type
CSFSpecimen Required
Container/Tube: Sterile vial
Specimen Volume: 1 mL
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| CSF | Refrigerated (preferred) | 14 days | |
| Frozen | 14 days |
Reference Values
CRYPTOCOCCUS ANTIGEN SCREEN WITH TITER
Negative
Reference values apply to all ages.
CRYPTOCOCCUS ANTIGEN TITER, LFA
Negative
Reference values apply to all ages.
FUNGAL CULTURE
Negative
If positive, fungus will be identified.
Reference values apply to all ages.
Day(s) Performed
Monday through Sunday
Report Available
Same day/1 to 35 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
87899-Cryptococcus Ag Screen w/Titer, CSF
87899-Cryptococcus Ag Titer, LFA, CSF (as appropriate)
87102-Fungal Culture, CSF (as appropriate)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| LFACX | Cryptococcus Ag w/Reflex, LFA, CSF | 29896-8 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 62074 | Cryptococcus Ag Screen w/Titer, CSF | 29896-8 |
Method Name
Lateral Flow Assay (LFA)
Test Classification
This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.Forms
If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.