Home
HelpTest ID FDERM Fungal Culture, Dermal
Useful For
Recovery and identification of dermatophyte fungi from hair, skin, and nail infection specimens
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| API | Yeast Ident Panel C | No, (Bill Only) | No |
| 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 |
| GT | Yeast Ident Panel A | No, (Bill Only) | No |
| LCCI | Ident Rapid PCR Coccidioides | No, (Bill Only) | No |
| LCHB | Id, Histoplasma/Blastomyces PCR | No, (Bill Only) | No |
| RAT1 | Yeast Ident panel B | No, (Bill Only) | No |
| RMALF | Id MALDI-TOF Mass Spec Fungi | No, (Bill Only) | No |
| RRU | Yeast Ident Panel D | 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
Plated to mycobiotic agar
Reporting Name
Fungal Culture, DermalSpecimen Type
VariesForms: If not ordering electronically, complete, print, and send a Microbiology Test Request Form (T244) with the specimen (http://www.mayomedicallaboratories.com/it-mmfiles/microbiology_test_request_form.pdf).
Specimen must arrive within 7 days of collection.
Specimen source is required.
Specimen Type: Hair
Container/Tube: Sterile container
Specimen Volume: 10-12
Collection Instructions: Using forceps collect affected hairs with shaft intact.
Specimen Type: Nails
Container/Tube: Sterile container
Specimen Volume: Entire collection
Collection Instructions:
1. Wipe the nail with 70% alcohol using gauze (not cotton).
2. Clip away a generous portion of the affected area.
3. Collect material or debris from under the nail.
Specimen Type: Skin
Container/Tube: Sterile container
Specimen Volume: Entire specimen
Collection Instructions:
1. Cleanse the affected area with 70% alcohol.
2. Gently scrape the surface of the skin at the active margin of the lesion, being careful to not draw blood.
Specimen Minimum Volume
NA
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Varies | Ambient | 7 days |
Clinical Information
Fungal infections of keratinized tissues (hair, skin, nails) can be caused by dermatophytic fungi belonging to the genera Epidermophyton, Microsporum, and Trichophyton. Opportunistic superficial infections resembling dermatophytoses may be caused by yeasts or by unrelated filamentous fungi that are normally saprobes or plant pathogens. Dermatophytes are usually unable to penetrate deeper tissues. Infection may range from mild to severe.
Reference Values
Negative
If positive, fungus or yeast will be identified.
Cautions
Aseptic techniques should be used when collecting specimens to minimize contamination.
For optimal recovery of organisms, sufficient clinical material should be collected.
Day(s) Performed
Monday through Sunday; Varies
Report Available
Positive cultures reported when detected. Negative cultures reported after 30 days.Performing Laboratory
Mayo Medical Laboratories in Rochester
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
87101-Fungal culture, dermal
87106-Yeast identification panel C (if appropriate)
87106-Yeast identification panel D (if appropriate)
87106-Id MALDI-TOF Mass Spec Yeast (if appropriate)
87107-Id MALDI-TOF Mass Spec Fungi (if appropriate)87107-Fungal identification panel A (if appropriate)
87107-Fungal identification panel B (if appropriate)
87107-Yeast identification panel A (if appropriate)
87107-Yeast 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)