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Test ID: ENFD    
Epidermal Nerve Fiber Density Consult

Available on the App Store

NY State Approved Indicates the status of NY State approval and if the test is orderable for NY State clients.


Useful For Suggests clinical disorders or settings where the test may be helpful

Investigation of polyneuropathies

Reflex Tests Lists test(s) that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial test(s)

Test IDReporting NameAvailable SeparatelyAlways Performed
EOSPSENFD, Outside Slides-PGP StainedNoNo
ENFDCENFD Consult, TissueNoNo
EROSBENFD, Review Outside Slides/BlockNoNo
PGP95PGP 9.5 ImmunostainNoNo
CREDCongo Red, Nrv STNoNo

Additional Tests Lists test(s) that are always performed, at an additional charge, with the initial test(s)

Test IDReporting NameAvailable SeparatelyAlways Performed
MORANMorphometric AnalysisNoYes

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

When this test is ordered, 1 of the 3 ENFD consult tests will be performed and charged for each biopsied site. Each additional stain will be charged separately.

Note: Special stains performed outside Mayo Medical Laboratories and included with the case may be repeated and charged at the reviewing neuropathologist's discretion. In addition, testing requested by referring physician (immunostains, molecular studies, etc) may not be performed if deemed unnecessary by the Mayo neuropathologist. For all requested consultations, auxiliary testing is ordered at the discretion of the Mayo neuropathologist.

Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test

Method Name A short description of the method used to perform the test

Calculation of Epidermal Nerve Fiber Density from Skin Punch Biopsy 

Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name

Epidermal Nerve Fiber Density

Aliases Lists additional common names for a test, as an aid in searching

Skin punch biopsy
Small fiber neuropathy