Blastomyces Antibody by CF
0050130
Ordering Recommendation
Submit With Order
Mnemonic
BLASTO
Methodology
Semi-Quantitative Complement Fixation
Performed
Sun-Sat
Reported
1-3 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Serum separator tube.  
Specimen Preparation
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as acute or convalescent.  
Storage/Transport Temperature
Refrigerated.  
Unacceptable Conditions
Contaminated or severely lipemic specimens.  
Remarks
 
Stability
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)  
Reference Interval
Less than 1:8
Interpretive Data
Less than 40 percent of patients have positive tests when active disease is present. Frequent cross-reactions occur in patients with histoplasmosis or coccidioidomycosis. Paired sera may detect rise in titer to single antigen.
Note
Negative fungal serology does not rule out the possibility of current infection.
CPT Code(s)
86612
Components
Component Test Code*Component Chart Name
0050130Blastomyces Antibody by CF
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Cross References
  • Fungus serology