Test ID FS Fungal Smear
Useful For
Detection of fungi in clinical specimens
Reflex Tests
Test ID | Reporting Name | Available Separately | Always Performed |
---|---|---|---|
TISSR | Tissue Processing | No, (Bill Only) | No |
T | Tissue Processing Charge | No, (Bill Only) | No |
MCON | Concentration Charge | No, (Bill Only) | No |
Testing Algorithm
When this test is ordered, the reflex test may be performed and charged.
Method Name
Calcofluor/KOH Stain
Reporting Name
Fungal SmearSpecimen Type
VariesForms: If not ordering electronically, complete, print, and send 1 of the following forms with the specimen:
Microbiology Test Request Form (T244) (http://www.mayomedicallaboratories.com/it-mmfiles/microbiology_test_request_form.pdf)
Neurology Test Request Form-General (T732) (http://www.mayomedicallaboratories.com/it-mmfiles/neurology-request-form.pdf)
Specimen should arrive within 24 hours of collection.
Specimen source is required.
Specimen Type: Body fluid
Container/Tube: Sterile container
Specimen Volume: Entire collection
Specimen Type: Bone marrow
Container/Tube: Sterile container
Specimen Volume: Entire collection
Specimen Type: Fresh tissue or stool
Container/Tube: Sterile container
Specimen Volume: Pea sized
Collection Instructions: Tissue should be placed in small amount of sterile saline or sterile water.
Specimen Type: Respiratory specimen
Container/Tube: Sterile container
Specimen Volume: Entire collection
Specimen Type: Swab
Fresh tissue or body fluid is the preferred specimen type instead of a swab specimen.
Sources: Dermal, ear, mouth, ocular, throat, or wound
Container/Tube: Culture transport swab (non-charcoal) Culturette
Specimen Volume: Swab
Collection Instructions:
1. Before collecting specimen, wipe away any excessive amount of secretion and discharge, if appropriate.
2. Obtain secretions or fluid from source with sterile swab.
3. If smear and culture are requested or both a bacterial culture and fungal culture are requested, collect a second swab to maximize test sensitivity.
Specimen Type: Urine
Container/Tube: Sterile container
Specimen Volume: 2 mL
Collection Instructions: Collect a random urine specimen.
Specimen Minimum Volume
Bone Marrow or Body Fluid: 1 mL/Respiratory Specimen: 1.5 mL/Tissue: pea-sized piece
Specimen Stability Information
Specimen Type | Temperature | Time |
---|---|---|
Varies | Refrigerated (preferred) | 7 days |
Ambient | 7 days |
Clinical Information
Many fungi in the environment cause disease in severely compromised human hosts. Accordingly, the range of potential pathogenic fungi has increased as the number of immunosuppressed individuals (persons with AIDS, patients receiving chemotherapy or transplant rejection therapy, etc.) has increased.
Few fungal diseases can be diagnosed clinically; most are diagnosed by isolating and identifying the infecting fungus in the clinical laboratory.
Reference Values
Negative
Cautions
No significant cautionary statements
Day(s) Performed
Monday through Sunday; Continuously
Report Available
1 dayPerforming Laboratory

Test Classification
This test uses a standard method. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
87206
87176-Tissue processing (if appropriate)