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Histoplasma capsulatum Antibody Immunodiffusion

Item Value
Clinical Questions Does my patient have histoplasmosis?
Approval req'd? No
Available Stat? No
Test code HSTO
Test group Histoplasma
Performed by Quest
Sendout? Yes
Collection Instructions Sera should be screened by ID. Draw before doing fungal skin tests.
Container type Gold top
Amount to Collect 2 mL blood
Sample type Serum
Preferred volume 1 mL serum
Min. Volume 0.2 mL serum
Processing notes Refrigerate. Order Quest # 52183P
Normal range Negative
Synonyms H. capsulatum
Turn around times Test performed Tuesday, Thursday and Saturday. Turnaround time: 4-6 days.
Additional information Preferred initial screening test.

ID testing detects both H and M bands. The H band is generally found in association with the M band, is unaffected by skin testing, and is consistently seen in patients with active histoplasmosis; the M band is often seen alone, is affected by skin testing, and may be found in either acute or chronic infection.

Testing by Complement Fixation is suggesed on all positives.
LOINC code 5218-3
Last Updated 10/2/2010 11:52:04 AM
Entry Number 504
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