Histoplasma spp. Antibodies by Immunodiffusion
New York DOH Approval Status
This test is New York DOH approved.
- Patient Preparation
- Serum separator tube.
- Specimen Preparation
- Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min 0.1 mL)
- Storage/Transport Temperature
- Unacceptable Conditions
- Body fluids.
- After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
The immunodiffusion test can detect precipitins to specific Histoplasma protein antigens (M and H). The M band often appears first and may occur without the H band. M precipitin is found in about 70 percent of both acute and chronic histoplasmosis cases. Both M and H occur together in only about 10 percent of patients.
Negative fungal serology does not rule out the possibility of current infection.
|Component Test Code*||Component Chart Name|
|0050174||Histoplasma spp. Abs, Precipitin|
- Histoplasma Precipitin (Histoplasma Antibody by ID)