Small-Fiber Dx Test

Alphabetical Test listing

Small-Fiber Dx Test-994

  
Small-Fiber Dx Test
  
994
  
LAB994
  
MSO
  
Skin punch biopsy Small fiber neuropathy
Small fiber Dx IENFD
  

This test is used to gain objective evidence of reduced intraepidermal nerve fiber density (IENFD) to confirm a diagnosis of small fiber neuropathy.

  
Tissue, skin punch biopsy
  
  • Order kit 1 - 2 weeks prior so it is received before procedure, ensuring fresh solutions and adequate time in case of shipping delays (eg, delay due to weather). Order online at CND Life Sciences
  • A kit contains
    • 3 mm punch biopsy tool, forceps, scissors
    • 3 transport vials containing 5 mL of Zamboni fixative
    • Requisition and specimen labels
    • UPS shipping bag and label
  • Do not use other fixatives or buffers

  
  • Collect three (3) punch biopsies, 3 mm each, from the same side of the body
  • Approved sites: left or right Posterior Cervical, Distal Thigh and Distal Leg
  
  • Place each biopsy immediately into the transport vials (Zamboni fixative)
  • Label each vial with:
    • Site
    • Patient name
    • Birth date
    • Side
  

Transport vial containing Zamboni fixative

  
  

Ambient - 5 days

Ship Monday - Friday within 24 - 48 hours 

  
CND Life Sciences; R-NX
  
21 days
  

See report

  
CND Life Sciences is responsible for billing
  
06/22/2026
  
07/24/2026
  
06/22/2026