FDERM - Specimen: Fungal Culture, Dermal

Test Catalog

Test ID: FDERM    
Fungal Culture, Dermal

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

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

Specimen Type Describes the specimen type needed for testing


Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.

Forms: 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 Defines the amount of specimen required to perform an assay once, including instrument and container dead space. Submitting the minimum specimen volume makes it impossible to repeat the test or perform confirmatory or perform reflex testing. In some situations, a minimum specimen volume may result in a QNS (quantity not sufficient) result, requiring a second specimen to be collected.


Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected








Charcoal, wooden shaft, or dry swab

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
VariesAmbient7 days
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