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Laboratory Test Directory

Chromosome Analysis, Tissue/Skin Biopsy/Autopsy, Postnatal


Name Method Department Units
Tissue Chromosome Analysis Chromosomal analysis

Specimen Requirements

Skin biopsy

Container Type Container Size Specimen Volume

Tissue culture transport media


Sterile container with saline


Ringer's lactate solution in sterile container


Room temperature - 24 hour(s)

Specimen Preparation

  • Do not add fixative
  • Do not freeze
  • Keep at room temperature
  • Do not formalin fix the sample
  • Transport to laboratory as soon as possible

Reasons for Rejection

  • Fixed specimen
  • Frozen specimen
  • Delayed or improper handling
  • Formalin Fixed Tissue


Completed Genetic Test Requisition Form is required. Please call Cytogenetics lab at (614) 722-5321 if tissue transport media and/or skin biopsy kit is needed. Collected tissue sample should be placed in a sterile container containng tissue transport media or sterile saline, and tissue should be completely immersed in the media/saline. Do NOT expose to formalin or other fixatives, and do NOT freeze. Transport the specimen to the laboratory as soon as possible at room temperature. For tissue culture only (no chromosome analysis), please see test code TCULT and clearly indicate on the lab order whether cryopreservation of cultured fibroblasts for future testing is desired, and/or additional in-house or send-out testing on cultured fibroblasts is desired. If additional testing is desired on cultured fibroblasts, call Cytogenetics lab and speak to a laboratory genetic counselor to coordinate additonal testing. If no cryopreservation is orderd, then cultured fibroblasts and remaining tissue will be discarded 2 weeks after the tissue chromosome analysis result is issued.

CPT Code

  • 88233
  • 88262