Chromosome analysis, cytogenetic analysis, karyotyping
POC, chorionic villus, fetal tissue, skin biopsy
Analysis of cultured cells using G-bandings
14 days. Note: slow growing cultures for products of conception are held for 21 days
Tissue from product of conception (fetal)
1 cm^3 skin biopsy
Ship with a cool pack (refrigerated).
Call before sending specimen on Friday
Ship Saturday for Monday delivery
Protect specimen from extreme temperature
Specimen exposed to extreme temperature; Insufficient number of cells; Specimen exposed to formalin or other fixative
Solid tissue specimens largely include fetal and neonatal deaths or spontaneous abortions where a chromosome abnormality is suspected, or abortus material for confirmation of a chromosome abnormality. Also referred to as solid tissue, specimens are skin biopsies from patients with suspected inborn errors of metabolism where cells are grown primarily for enzymatic assay, or from patients with known or suspected chromosome mosaicism.