Please be sure to review ALL instructions below that apply to your specimen(s).

Specimens Submitted From North America

Non-Prenatal Specimens: Please send ONE of the following types of specimens:
  • Whole blood: purple-top (EDTA) tube, minimum of 3 ml.  Whole blood should be stored at 4°C until shipped.
  • Genomic DNA:  minimum of 10 µg (at a concentration of at least 50 ng/µl), preferably in TE solution.
  • Fibroblasts: 4 confluent T-25 flasks. Please fill all flasks to capacity with cell culture media.
  • Saliva: only samples collected in Oragene DNA Self-Collection Kit or Oragene Saliva Collection Kit for Young Children are accepted (www.dnagenotek.com).  Note: Saliva samples are NOT accepted for HDT array deletion/duplication tests.
Prenatal Specimens: Please send ONE of the following types of specimens:
  • Cultured cells: 4 confluent T-25 flasks derived from amnio or CVS samples.  Please fill all flasks to capacity with cell culture media.
  • Genomic DNA:  minimum of 10 µg (at a concentration of at least 50 ng/µl), preferably in TE solution.

CTGT highly recommends including a maternal sample for maternal cell contamination studies with all prenatal tests. Maternal sample requirements are as listed above in the Non-Prenatal Specimens section.

Specimens From Outside Of North America

  • Please send genomic DNA:  a minimum of 10 µg (at a concentration of at least 50 ng/µl), preferably in TE solution.

CTGT does not recommend shipping whole blood or cultured cells from any location other than the United States, Canada or Mexico.

ALL Specimens From All Locations

  • Please be sure that every sample tube is clearly labelled with at least two patient identifiers (for example, patient name and date of birth) and that these identifiers match the information on the requisition form.  For genomic DNA samples, please include volume and concentration.
  • All sample types should be shipped at ambient temperature via an overnight courier.
  • Please review the instructions on the Shipping page to ensure that your shipment is received in good condition by CTGT.

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