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Test Code FBL Fungal Culture, Blood

Reporting Name

Fungal Culture, Blood

Useful For

Diagnosis and treatment of the etiologic agents of fungemia


Select patient population that presents with signs and symptoms of sepsis, especially fever of unknown origin

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Whole blood

Specimen Required


Preferred: Green top (heparin)

Acceptable: SPS/Isolator tube

Specimen Volume: 10-30 mL

Collection Instructions: Send specimen in original tube.

Specimen Minimum Volume

5 mL
Pediatric: 1.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole blood Ambient (preferred) 7 days
  Refrigerated  7 days

Reference Values


If positive, notification is made as soon as the positive culture is detected or identified.

Day(s) and Time(s) Performed

Monday through Sunday; Varies

Test Classification

This test uses a standard method. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

CPT Code Information

87015-Concentration (any type) for infectious agents


87106-Id MALDI-TOF Mass Spec Yeast (if appropriate)

87107-Id MALDI-TOF Mass Spec Fungi (if appropriate)

87106-Yeast identification panel D (if appropriate)87107-Fungal identification panel A (if appropriate)      

87107-Fungal identification panel B (if appropriate)

87150-Identification rapid PCR coccidioides (if appropriate)

87150 x 2- Identification Histoplasma/Blastomyces, PCR (if appropriate)

87153- D2 fungal sequencing identification (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
FBL Fungal Culture, Blood 601-5


Result ID Test Result Name Result LOINC Value
FBL Fungal Culture, Blood 601-5

Reject Due To

No specimen should be rejected.

Reflex Tests

Test ID Reporting Name Available Separately Always Performed
D2F D2 Fungal Sequencing Identification No, (Bill Only) No
FUNA Fungal Ident Panel A No, (Bill Only) No
FUNB Fungal Ident Panel B No, (Bill Only) No
LCCI Ident Rapid PCR Coccidioides No, (Bill Only) No
LCHB Id, Histoplasma/Blastomyces PCR No, (Bill Only) No
RMALF Id MALDI-TOF Mass Spec Fungi No, (Bill Only) No
RMALY Id MALDI-TOF Mass Spec Yeast No, (Bill Only) No

Testing Algorithm

When this test is ordered, the reflex test may be performed and charged.

Method Name

Conventional broth culture technique with identification by macroscopic and microscopic morphology, nucleic acid hybridization probes, D2 rDNA gene sequencing, real-time polymerase chain reaction (rtPCR), or MALDI-TOF mass spectrometry. Dimorphic pathogen identification is confirmed using molecular methods (ie, nucleic acid hybridization probes, D2 rDNA gene sequencing, rtPCR or MALDI-TOF mass spectrometry).


If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.