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HelpEpic Test Code LAB240 Fungal Culture, Dermal
Additional Codes
MML:FDERM
Lab Use Only Code: LAB279
Reporting Name
Fungal Culture, DermalUseful For
Recovery and identification of dermatophyte fungi from hair, skin, and nail infected specimens
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
VariesShipping Instructions
Specimen must arrive within 7 days of collection.
Transport in petri dishes may result in loss of specimen. Securely tape petri dishes closed for transport.
Necessary Information
Specimen source is required.
Specimen Required
Note:
-Aseptic techniques should be used when collecting specimens to minimize contamination.
-For optimal recovery of organisms, sufficient clinical material should be collected.
Specimen Type: Hair
Container/Tube: Dry sterile container or specimen collection envelope
Specimen Volume: 10 to 12
Collection Instructions: Using forceps collect affected hairs with base of the shaft intact.
Specimen Type: Nails
Container/Tube: Dry sterile container or specimen collection envelope
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: Dry sterile container or specimen collection envelope
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 Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Varies | Ambient | 7 days |
Reference Values
Negative
If positive, fungus or yeast will be identified.
Day(s) Performed
Monday through Sunday
CPT Code Information
87101-Fungal culture, dermal
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)
87150-Identification rapid PCR Coccidioides (if appropriate)
87150 x 2-Identification Histoplasma/Blastomyces, PCR (if appropriate)
87153-D2 fungal sequencing identification (if appropriate)
87150-Id, Candida auris Rapid PCR (if appropriate)
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.
Interpretation
Positive cultures are reported with organism identification.
Negative reports are issued after 30 days incubation.
Cautions
No significant cautionary statements
Report Available
30 to 35 daysReject Due To
| Charcoal, wooden shaft, or dry swab Agar plate Blades from scalpel or razor |
Reject |
NY State Approved
YesReflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| 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 |
| D2F | D2 Fungal Sequencing Identification | No, (Bill Only) | No |
Testing Algorithm
When this test is ordered, the reflex test may be performed at an additional charge.
Method Name
Plated to Mycobiotic Agar
Forms
If not ordering electronically, complete, print, and send a Microbiology Test Request (T244) with the specimen.