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Fungal Culture, Blood

Item Value
Clinical Questions Does my patient have histoplasmosis?
Approval req'd? Yes, consult Microbiology at x3-1268 for fungal blood culture requests.
Available Stat? No
Utilization Guidelines Fungal blood cultures are indicated only for Histoplasma capsulatum, however, bone marrow is the preferred specimen for this organism.

Yeasts such as candida grow well in routine blood cultures and a specific 'fungal culture' order is unnecessary for detecting yeasts.

Aspergillus and other molds will not grow in blood cultures; a tissue specimen is required for these organisms.
Test code P258
Test group Fungal Culture
Performed by Microbiology
In House Availability Set up daily, all shifts
Container type Dark green top x 2 (DO NOT use Lithium heparin i.e. Light Green top tube.)
Amount to Collect 8 mL blood
Sample type Heparinized blood
Preferred volume 8 mL blood
Min. Volume 4 mL blood
UCSF Rejection Criteria Blood submitted in Lithium heparin (Lt. Green top) vacutainer.
Normal range
Critical value Biphasic fungus (e.g. Coccidiodes immitis) or zygomycetes (e.g. mucromycosis) isolated.
Synonyms H. capsulatum; Histoplasma capsulatum
Stability Refrigerated 24 hours
Turn around times Up to 4 weeks
Additional information Routine blood cultures are incubated for 5 days, sufficient to detect yeast.

CPT coding 87103
LOINC code 572-8
Last Updated 3/27/2017 11:42:23 AM
Entry Number 402
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